is a scientific essay a secondary source

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Citations: Secondary Sources

Nontraditional sources: secondary sources video.

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Basics of Secondary Sources

Secondary sources often are defined in contrast to primary sources. In a primary source, an author shares his or her original research—whether it be case study findings, experiment results, interview materials, or clinical observations. However, in a secondary source, an author focuses on presenting other scholars’ research, such as in a literature review.

When trying to distinguish between a primary and secondary source, it is important to ask yourself:

• Who originally made the discoveries or brought the conclusions in this document to light?
• Did the author conduct the study his or herself?
• Or is the author recounting the work of other authors? 

For further guidance on determining the difference between primary and secondary sources, see Walden Library’s “Evaluating Resources: Primary & Secondary Sources” page .

Citing a Source Within a Source

Secondary sources refer to sources that report on the content of other published sources.

Citing a source within a source (citing a secondary source) is generally acceptable within academic writing as long as these citations are kept to a minimum. You should use a secondary source only if you are unable to find or retrieve the original source of information. However, if you need to cite a source within a source, follow the guidelines from APA 7, Section 8.6.

For example, imagine that you found a quotation from Culver that you wish to use in your text; however, you found this information in Jones and were unable to locate Culver’s original source. For this reference, Culver would be the primary source, and Jones would be the secondary source. You will name the primary source in your text, but the reference and citations will credit the secondary source:

According to Culver (2006, as cited in Jones, 2009), learning APA "can be tough, but like any skill, it just takes practice" (p. 23). In addition, the mastery of APA increases an author's chance of scoring well on an assignment (Culver, 2006, as cited in Jones, 2009).

Corresponding Reference List Entry

Cite just the secondary source in your reference list.

Jones, J. (2009). Scholarly writing tips . Minneapolis, MN: Publishing House.

Secondary source citations are not just for direct quotations. For instance, when referencing Rogers's adult learning theory, if you did not find the information in Rogers, your citations for the material should be in secondary source format.

Note : When citing primary material, the original publication date is usually unneeded. Following the primary author's name with the year in parentheses, like Culver (2006), indicates that you are directly citing the original source. To avoid confusion, just include the year of the secondary source in your text, like Culver (as cited in Jones, 2009).

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Knowledge Check: Secondary Sources

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• Primary vs. Secondary Sources | Difference & Examples

Primary vs. Secondary Sources | Difference & Examples

Published on 4 September 2022 by Raimo Streefkerk . Revised on 15 May 2023.

When you do research, you have to gather information and evidence from a variety of sources.

Primary sources provide raw information and first-hand evidence. Examples include interview transcripts, statistical data, and works of art. A primary source gives you direct access to the subject of your research.

Secondary sources provide second-hand information and commentary from other researchers. Examples include journal articles, reviews, and academic books . A secondary source describes, interprets, or synthesises primary sources.

Primary sources are more credible as evidence, but good research uses both primary and secondary sources.

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Table of contents

What is a primary source, what is a secondary source, primary and secondary source examples, how to tell if a source is primary or secondary, primary vs secondary sources: which is better, frequently asked questions about primary and secondary sources.

A primary source is anything that gives you direct evidence about the people, events, or phenomena that you are researching. Primary sources will usually be the main objects of your analysis.

If you are researching the past, you cannot directly access it yourself, so you need primary sources that were produced at the time by participants or witnesses (e.g. letters, photographs, newspapers ).

If you are researching something current, your primary sources can either be qualitative or quantitative data that you collect yourself (e.g. through interviews, surveys, experiments) or sources produced by people directly involved in the topic (e.g. official documents or media texts).

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A secondary source is anything that describes, interprets, evaluates, or analyses information from primary sources. Common examples include:

• Books , articles and documentaries that synthesise information on a topic
• Synopses and descriptions of artistic works
• Encyclopaedias and textbooks that summarize information and ideas
• Reviews and essays that evaluate or interpret something

When you cite a secondary source, it’s usually not to analyse it directly. Instead, you’ll probably test its arguments against new evidence or use its ideas to help formulate your own.

Examples of sources that can be primary or secondary

A secondary source can become a primary source depending on your research question . If the person, context, or technique that produced the source is the main focus of your research, it becomes a primary source.

To determine if something can be used as a primary or secondary source in your research, there are some simple questions you can ask yourself:

• Does this source come from someone directly involved in the events I’m studying (primary) or from another researcher (secondary)?
• Am I interested in analysing the source itself (primary) or only using it for background information (secondary)?
• Does the source provide original information (primary) or does it comment upon information from other sources (secondary)?

Most research uses both primary and secondary sources. They complement each other to help you build a convincing argument. Primary sources are more credible as evidence, but secondary sources show how your work relates to existing research.

What do you use primary sources for?

Primary sources are the foundation of original research. They allow you to:

• Make new discoveries
• Provide credible evidence for your arguments
• Give authoritative information about your topic

If you don’t use any primary sources, your research may be considered unoriginal or unreliable.

What do you use secondary sources for?

Secondary sources are good for gaining a full overview of your topic and understanding how other researchers have approached it. They often synthesise a large number of primary sources that would be difficult and time-consuming to gather by yourself. They allow you to:

• Gain background information on the topic
• Support or contrast your arguments with other researchers’ ideas
• Gather information from primary sources that you can’t access directly (e.g. private letters or physical documents located elsewhere)

When you conduct a literature review , you can consult secondary sources to gain a thorough overview of your topic. If you want to mention a paper or study that you find cited in a secondary source, seek out the original source and cite it directly.

Remember that all primary and secondary sources must be cited to avoid plagiarism . You can use Scribbr’s free citation generator to do so!

Common examples of primary sources include interview transcripts , photographs, novels, paintings, films, historical documents, and official statistics.

Anything you directly analyze or use as first-hand evidence can be a primary source, including qualitative or quantitative data that you collected yourself.

Common examples of secondary sources include academic books, journal articles , reviews, essays , and textbooks.

Anything that summarizes, evaluates or interprets primary sources can be a secondary source. If a source gives you an overview of background information or presents another researcher’s ideas on your topic, it is probably a secondary source.

To determine if a source is primary or secondary, ask yourself:

• Was the source created by someone directly involved in the events you’re studying (primary), or by another researcher (secondary)?
• Does the source provide original information (primary), or does it summarize information from other sources (secondary)?
• Are you directly analyzing the source itself (primary), or only using it for background information (secondary)?

Some types of sources are nearly always primary: works of art and literature, raw statistical data, official documents and records, and personal communications (e.g. letters, interviews ). If you use one of these in your research, it is probably a primary source.

Primary sources are often considered the most credible in terms of providing evidence for your argument, as they give you direct evidence of what you are researching. However, it’s up to you to ensure the information they provide is reliable and accurate.

Always make sure to properly cite your sources to avoid plagiarism .

A fictional movie is usually a primary source. A documentary can be either primary or secondary depending on the context.

If you are directly analysing some aspect of the movie itself – for example, the cinematography, narrative techniques, or social context – the movie is a primary source.

If you use the movie for background information or analysis about your topic – for example, to learn about a historical event or a scientific discovery – the movie is a secondary source.

Whether it’s primary or secondary, always properly cite the movie in the citation style you are using. Learn how to create an MLA movie citation or an APA movie citation .

Articles in newspapers and magazines can be primary or secondary depending on the focus of your research.

In historical studies, old articles are used as primary sources that give direct evidence about the time period. In social and communication studies, articles are used as primary sources to analyse language and social relations (for example, by conducting content analysis or discourse analysis ).

If you are not analysing the article itself, but only using it for background information or facts about your topic, then the article is a secondary source.

Cite this Scribbr article

If you want to cite this source, you can copy and paste the citation or click the ‘Cite this Scribbr article’ button to automatically add the citation to our free Reference Generator.

Streefkerk, R. (2023, May 15). Primary vs. Secondary Sources | Difference & Examples. Scribbr. Retrieved 29 April 2024, from https://www.scribbr.co.uk/working-sources/primary-vs-secondary-sources/

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Distinguish between primary and secondary sources.

• Further Information

Introduction

1. Introduction

Whether conducting research in the social sciences, humanities (especially history), arts, or natural sciences, the ability to distinguish between primary and secondary source material is essential. Basically, this distinction illustrates the degree to which the author of a piece is removed from the actual event being described, informing the reader as to whether the author is reporting impressions first hand (or is first to record these immediately following an event), or conveying the experiences and opinions of others—that is, second hand .  

2. Primary sources

These are contemporary accounts of an event, written by someone who experienced or witnessed the event in question. These original documents (i.e., they are not about another document or account) are often diaries, letters, memoirs, journals, speeches, manuscripts, interviews and other such unpublished works. They may also include published pieces such as newspaper or magazine articles (as long as they are written soon after the fact and not as historical accounts), photographs, audio or video recordings, research reports in the natural or social sciences, or original literary or theatrical works.  

3. Secondary sources

The function of these is to interpret primary sources , and so can be described as at least one step removed from the event or phenomenon under review. Secondary source materials, then, interpret, assign value to, conjecture upon, and draw conclusions about the events reported in primary sources. These are usually in the form of published works such as journal articles or books, but may include radio or television documentaries, or conference proceedings.  

4. Defining questions

When evaluating primary or secondary sources, the following questions might be asked to help ascertain the nature and value of material being considered:

• How does the author know these details (names, dates, times)? Was the author present at the event or soon on the scene?
• Where does this information come from—personal experience, eyewitness accounts, or reports written by others?
• Are the author's conclusions based on a single piece of evidence, or have many sources been taken into account (e.g., diary entries, along with third-party eyewitness accounts, impressions of contemporaries, newspaper accounts)?

Ultimately, all source materials of whatever type must be assessed critically and even the most scrupulous and thorough work is viewed through the eyes of the writer/interpreter. This must be taken into account when one is attempting to arrive at the 'truth' of an event.

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2.4: Primary, Secondary and Tertiary Sources

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Another information category is called publication mode and has to do with whether the information is:

• Firsthand information (information in its original form, not translated or published in another form).
• Secondhand information (a restatement, analysis, or interpretation of original information).
• Thirdhand information (a summary or repackaging of original information, often based on secondary information that has been published).

The three labels for information sources in this category are, respectively, primary sources, secondary sources, and tertiary sources . Here are examples to illustrate the first- handedness, second-handedness, and third-handedness of information:

When you make distinctions between primary, secondary, and tertiary sources, you are relating the information itself to the context in which it was created. Understanding that relationship is an important skill that you’ll need in college, as well as in the workplace. Noting the relationship between creation and context helps us understand the “big picture” in which information operates and helps us figure out which information we can depend on. That’s a big part of thinking critically, a major benefit of actually becoming an educated person.

As a reminder, recall one of the frames of the Framework for Information Literacy is Authority is Constructed and Contextual . Information does not occur in a vacuum, but within a context that impacts its meaning. Part of that context will be how you as an information consumer will process the different facets in which that information exists. So, with this in mind, recognize that primary sources as defined below are not cut and dried, nor black or white. For example, to a historian, an image or a representation of a piece of sculpture might be considered a primary source for the purposes of historical analysis; however, to a sculpture or an archaeologist, anything short of the physical piece of sculpture itself would not be considered a primary source. So, in this case, the “context” to consider is how the source of information itself is perceived by a particular discipline (history vs. sculpture or archaeology). More on this below when we consider the “format” of a source.

Primary Sources – Because it is in its original form, the information in primary sources has reached us from its creators without going through any filter. We get it firsthand. Here are some examples that are often used as primary sources:

• Any literary work, including novels, plays, and poems.
• Breaking news (first formal documentation of event–remember the Information Cycle).
• Advertisements.
• Music and dance performances.
• Eyewitness accounts, including photographs and recorded interviews.
• Blog entries that are autobiographical.
• Scholarly blogs that provide data or are highly theoretical, even though they contain no autobiography.
• Artifacts such as tools, clothing, or other objects.
• Original documents such as tax returns, marriage licenses, and transcripts of trials.
• Websites, although many are secondary.
• Correspondence, including email.
• Records of organizations and government agencies.
• Journal articles that report original research for the first time (at least the parts about the new research, plus their data).

Secondary Source – These sources are sources about the sources, such as analysis or interpretation of the original information, the primary source. Thus, the information comes to us secondhand, or through at least one filter. Here are some examples that are often used as secondary sources:

• Nonfiction books and magazine articles except autobiography.
• An article or website that critiques a novel, play, painting, or piece of music.
• An article or web site that synthesizes expert opinion and several eyewitness accounts for a new understanding of an event.
• The literature review portion of a scholarly journal article.

Tertiary Source – These sources further repackage the original information because they index, condense, or summarize the original.

Typically, by the time tertiary sources are developed, there have been many secondary sources prepared on their subjects, and you can think of tertiary sources as information that comes to us “third-hand,” that is, pre -processed. Tertiary sources are usually publications that you are not intended to read from cover to cover but to dip in and out of for the information you need. You can think of them as a good place for background information to start your research but a bad place to end up. Here are some examples that are often used as tertiary sources, which are also considered “reference sources” in the library world:

• Dictionaries.
• Guide books, like the MLA Handbook
• Survey articles.
• Bibliographies.
• Encyclopedias, including Wikipedia.
• Most textbooks, including the one you are now reading.

Tertiary sources are usually not acceptable as cited sources in college research projects because they are so far removed from firsthand information. That’s why most professors don’t want you to use Wikipedia as a citable source: the information in Wikipedia is far from original information. Other people have considered it, decided what they think about it, rearranged it, and summarized it–all of which is actually what your professors want you , not another author, to do with information in your research projects.

The Details Are Tricky — A few things about primary or secondary sources might surprise you:

• Sources have the potential of becoming primary rather than always exist as primary sources.

It’s easy to think that it is the format of primary sources that makes them primary. But that’s not all that matters. When you see lists like the one above of sources that are often used as primary sources, it’s wise to remember that the ones listed are not automatically already primary sources. Firsthand sources get that designation only when researchers actually find their information relevant and use it.

For instance: Here is an illustration of the frame, Authority is Constructed and Contextual. Records that could be relevant to those studying government are created every day by federal, state, county, and city governments as they operate. But until the raw data are actually used by a researcher, they cannot be considered primary sources. How this data is used is what gives these sources the designation, and authority, as primary sources.

Another example that references the frame, Authority is Constructed and Contextual : A diary about his flying missions kept by an American helicopter pilot in the Vietnam War is not a primary source until, say, a researcher uses it in her study of how the war was carried out. But it will never be a primary source for a researcher studying the U.S. public’s reaction to the war because it does not contain information relevant to that study.

• Primary sources, even eyewitness accounts, are not necessarily accurate. Their accuracy has to be evaluated, just like that of all sources.
• Something that is usually considered a secondary source can be considered a primary source, depending on the research project and the context in which something is used .

Here is another example where the context of the use of the source dictates whether or not the source is primary or secondary. For instance, movie reviews are usually considered secondary sources. But if your research project is about the effect movie reviews have on ticket sales, the movie reviews you study would become primary sources.

• Deciding whether to consider a journal article a primary or a secondary source can be complicated for at least two reasons.

First, scholarly journal articles that report new research for the first time are usually based on data. So some disciplines consider the data to be the primary source, and the journal article that describes and analyzes them is considered a secondary source.

However, particularly in the sciences, the original researcher might find it difficult or impossible (he or she might not be allowed) to share the data. So sometimes you have nothing more firsthand than the journal article, which argues for calling it the relevant primary source because it’s the closest thing that exists to the data.

Second, even scholarly journal articles that announce new research for the first time usually contain more than data. They also typically contain secondary source elements, such as a literature review, bibliography, and sections on data analysis and interpretation. So they can actually be a mix of primary and secondary elements. Even so, in some disciplines, a journal article that announces new research findings for the first time is considered to be, as a whole, a primary source for the researchers using it.

ACTIVITY: Under What Circumstances?

Instructions: Look at each of the sources listed below and think of circumstances under which each could become a primary source. (There are probably many potential circumstances for each.) So just imagine you are a researcher with projects that would make each item firsthand information that is relevant to your work. What kind of project would make each of the following sources relevant firsthand information? Our answers are at the bottom of the page, but remember that there are many more–including the ones you think of that we didn’t!

• Fallingwater, a Pennsylvania home designed and constructed by Frank Lloyd Wright in the 1930s.
• Poet W.H. Auden’s elegy for Y.S. Yeats.
• An arrowhead made by (Florida) Seminole Native Americans but found at Flint Ridge outside Columbus, Ohio.
• E-mail between the U.S. ambassador to the United Nations, Nikki Haley, and her staff about North Korea.
• A marriage license.

Despite their fluidity, what primary sources usually offer is too good not to consider using because:

• They are original. This unfiltered, firsthand information is not available anywhere else.
• Their creator was a type of person unlike others in your research project, and you want to include that perspective.
• Their creator was present at an event and shares an eyewitness account.
• They are objects that existed at the particular time of the project you are studying.

Particularly in humanities courses, your professor may require you to use a certain number of primary sources for your project. In other courses, particularly in the sciences, you may be required to use only primary sources.

What is considered primary and secondary sources can vary from discipline to discipline. If you are required to use primary sources for your research project, before getting too deep into your project, check with your professor to make sure he or she agrees with your choices. After all, it’s your professor who will be grading your project. A librarian, too, can verify your choices. Just remember to take a copy of your assignment with you when you ask, because the librarian will want to see the original assignment. After all, that’s a primary source!

POSSIBLE AnswerS TO ACTIVITY: Under What Circumstances?

• You are doing a study of the entrances Wright designed for homes, which were smaller than other architects of the time typically designed entrances.
• Your research project is about the Auden-Yeats relationship.
• Your research project is about trade among 19th century Native Americans east of the Mississippi River.
• Your research project is on how Ambassador Haley conveyed a decision about North Korea to her staff.
• You are writing about the life of a person who claimed to have married several times, and you need more than her statements about when those marriages took place and to whom.

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In the social sciences, a secondary source is usually a scholar book, journal article, or digital or print document that was created by someone who did not directly experience or participate in the events or conditions under investigation. Secondary sources are not evidence per se, but rather, provide an interpretation, analysis, or commentary derived from the content of primary source materials and/or other secondary sources.

Value of Secondary Sources

To do research, you must cite research. Primary sources do not represent research per se, but only the artifacts from which most research is derived. Therefore, the majority of sources in a literature review are secondary sources that present research findings, analysis, and the evaluation of other researcher's works.

Reviewing secondary source material can be of valu e in improving your overall research paper because secondary sources facilitate the communication of what is known about a topic. This literature also helps you understand the level of uncertainty about what is currently known and what additional information is needed from further research. It is important to note, however, that secondary sources are not the subject of your analysis. Instead, they represent various opinions, interpretations, and arguments about the research problem you are investigating--opinions, interpretations, and arguments with which you may either agree or disagree with as part of your own analysis of the literature.

Examples of secondary sources you could review as part of your overall study include:     * Bibliographies [also considered tertiary]     * Biographical works     * Books, other than fiction and autobiography     * Commentaries, criticisms     * Dictionaries, Encyclopedias [also considered tertiary]     * Histories     * Journal articles [depending on the discipline, they can be primary]     * Magazine and newspaper articles [this distinction varies by discipline]     * Textbooks [also considered tertiary]     * Web site [also considered primary]

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Primary v Secondary Sources

The Standard Definition

In historical writing, a primary source is a document or physical object which was written or created during the time under study. These sources were present during an experience or time period and offer an inside view of a particular event. Some types of primary sources include: * ORIGINAL DOCUMENTS (excerpts or translations acceptable): Diaries, speeches, manuscripts, letters, interviews, news film footage, autobiographies, official records * CREATIVE WORKS: Poetry, drama, novels, music, art * RELICS OR ARTIFACTS: Pottery, furniture, clothing, buildings Examples of primary sources include: * Diary of Anne Frank - Experiences of a Jewish family during WWII * The Constitution of Canada - Canadian History * A journal article reporting NEW research or findings * Weavings and pottery - Native American history * Plato's Republic - Women in Ancient Greece What is a secondary source? A secondary source interprets and analyzes primary sources. These sources are one or more steps removed from the event. Secondary sources may have pictures, quotes or graphics of primary sources in them. Some types of seconday sources include: * PUBLICATIONS: Textbooks, magazine articles, histories, criticisms, commentaries, encyclopedias Examples of secondary sources include: * A journal/magazine article which interprets or reviews previous findings * A history textbook * A book about the effects of WWI Search by keyword for Primary Sources in the Main Catalog You can search the Main Catalog to find direct references to primary source material. Perform a keyword search for your topic and add one of the words below: (these are several examples of words that would identify a source as primary) * charters * correspondence * diaries * early works * interviews * manuscripts * oratory * pamphlets * personal narratives * sources * speeches * letters * documents

Another Possible Usage

PRIMARY SOURCE (more frequently PRIMARY TEXT) is sometimes used in a different sense in some types of classes. In a literature class, for example, the primary source might be a novel about which you are writing, and secondary sources those sources also writing about that novel (i.e., literary criticism). However, if you were writing about the literary criticism itself and making an argument about literary theory and the practice of literary criticism, some would use the term PRIMARY SOURCE to refer to the criticism about which you are writing, and secondary sources other sources also making theoretical arguments about the practice of literary criticism. In this second sense of primary source, whatever you are primarily writing ABOUT becomes the primary source, and secondary sources are those sources also writing about that source. Often this will be called the PRIMARY TEXT, but some people do use primary source with this meaning.

Tertiary Sources

Just so you can keep up with all the scholarly jargon about sources, a tertiary source is a source that builds upon secondary sources to provide information. The most common example is an encyclopedia. Consider a particular revolution as an historical event. All the documents from the time become primary sources. All the historians writing later produce secondary sources. Then someone reads those secondary sources and summarizes them in an encyclopedia article, which becomes a tertiary source. If someone then collected a bibliography of encyclopedia articles on the topic, that might be a quarternary source, but at that point the whole thing just becomes silly.

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Primary & Secondary Sources in the Sciences - Overview

Primary Sources

In the sciences, primary sources are very specific.  Primary source documents in the sciences focus on original research, ideas, or findings and are most often published in scholarly journals or presented at academic conferences.  These articles or presen tati ons mark the first publication of such research; they present new data and detail the researcher’s methodology and results.

Primary sources are factual, not interpretive, and include sources such as

• published results of research studies, experiments, clinical trials
• proceedings of conferences and meetings
• technical reports

Secondary Sources

Secondary sources in the sciences analyze and interpret primary research results.  These sources usually have the goal of summarizing, explaining, or providing an overview of a topic, and can help place the research in context.  Secondary literature is often published in books, magazines, or journals.

Secondary sources include sources such as

• review articles, which summarize previously published studies
• articles that discuss the significance of published research or experiments
• analyses of clinical trials

Identifying Primary Research Articles in the Sciences (video)

video from University of Wisconsin-Madison Libraries

Primary, Secondary, & Tertiary Sources

• Humanities/Social Sciences

Informational sources can be classified roughly into three groups - primary, secondary, and tertiary - that reflect their originality. These groups are defined generally below.

Primary sources are original, uninterpreted information. Unedited, firsthand access to words, images, or objects created by persons directly involved in an activity or event or speaking directly for a group. This is information before it has been analyzed, interpreted, commented upon, spun, or repackaged. Depending upon the context, these may include research reports, sales receipts, speeches, e-mails, original artwork, manuscripts, photos, diaries, personal letters, spoken stories/tales/interviews, diplomatic records, etc.

Think of physical evidence or eyewitness testimony in a court trial.

Secondary sources interpret, analyze, or summarize. Commentary upon, or analysis of, events, ideas, or primary sources. Because they are often written significantly after events by parties not directly involved but who have special expertise, they may provide historical context or critical perspectives. Examples are scholarly books, journals, magazines, criticism, interpretations, and so forth.

Think of a lawyer's final summation or jury discussion in a court trial.

Tertiary sources compile, index, or organize sources.   Sources which analyzed, compiled and digest secondary sources included mostly in abstracts, bibliographies, handbooks, encyclopedias, indexes, chronologies, etc.

Think of an index that lists all the cases heard by this court during the year.

In the humanities and social sciences, primary sources are the direct evidence or first-hand accounts of events without secondary analysis or interpretation. A primary source is a work that was created or written contemporary with the period or subject being studied. Secondary sources analyze or interpret historical events or creative works.

Primary sources

• Autobiographies
• Original works of art
• Photographs
• Works of literature

A primary source is an original document containing firsthand information about a topic. Different fields of study may use different types of primary sources.

Secondary sources

• Biographies
• Dissertations
• Indexes, abstracts, bibliographies (used to locate a secondary source)
• Journal articles
• Book about a primary source

A secondary source contains commentary on or discussion about a primary source. The most important feature of secondary sources is that they offer an interpretation of information gathered from primary sources.

Tertiary sources

• Dictionaries
• Encyclopedias

A tertiary source presents summaries or condensed versions of materials, usually with references back to the primary and/or secondary sources. They can be a good place to look up facts or get a general overview of a subject, but they rarely contain original material.

Adapted from lib.vt.edu  

In the sciences, primary sources are documents written by the person(s) who conducted the original research. For example, a primary source would be a research article where scientists describe their methodology, results, and conclusions about the genetics of tobacco plants. A secondary source would be an article commenting or analyzing the scientists' research on tobacco.

• Conference proceedings
• Original research articles
• Lab notebooks
• Technical reports

These sources are where the results of original research are usually first published in the sciences. This makes them the best source of information on cutting edge topics. However the new ideas presented may not be fully refined or validated yet.

• Review Articles

These sources tend to summarize the existing state of knowledge in a field at the time of publication. Secondary sources are useful places to learn about your topic in depth. They are useful places to find comparisons of different ideas and theories and to see how they may have changed over time.

• Compilations

These types of sources present condensed material, generally with references back to the primary and/or secondary literature. They can be a good place to look up data or to get an overview of a subject, but they rarely contain original material.

modified from l ib.vt.edu

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How Scientific and Technical Information Works

• Introduction to the Ecosystem

An Information Timeline

• Primary Sources
• Secondary Sources
• Tertiary or Reference Sources
• Popular (vs. Scholarly) Sources
• Peer Review
• Search Strategies
• How to Evaluate Information
• Cite Sources
• Citation Management Software This link opens in a new window

In science, technology, engineering, and math, things are always happening. New ideas, unexpected experimental results, incremental achievements and landmark discoveries. One way we like to categorize the information that is produced in order to document, analyze, and integrate an Event is based on their proximity to that Event: "Primary," "Secondary," and "Tertiary" literature. An Event, a reaction to the Event, and a summary of the Event.

 We value primary literature because it gets us as close as possible to the Event itself. We value secondary literature because it provides us with commentary, analysis, critique, and contextualization of the Event. We value tertiary literature because it distills the Event and its aftermath down to a short, authoritative entry that helps us quickly understand what happened.

Primary sources bring us the closest we're ever likely to get to most new research and theoretical work in STEM. These publications document experiments, observations, discoveries, new modes of analysis, and new research methods, and they are written by the people most directly involved. While peer reviewed articles in scholarly journals are the most common and well-known source of primarily literature in STEM, it can be found in a variety of formats. If your professor asks you to find a primary source for class, this is probably what they're looking for. Below are the most common types of primary research publications you are likely to encounter.

Peer Reviewed Research Articles

Research articles are extensive and detailed descriptions of scientific experiments, observations, and analysis carried out by the authors. (Learn more about peer review in the "What is Peer Review?" tab to your left.) These articles are published in peer-reviewed journals, or occasionally as chapters in edited scholarly books. They are the primary way that most scientists learn about advances in their fields. If an article is very influential in its field, or at least very interesting or surprising, it is likely to be cited in the publications of other scientists working in the same areas, and perhaps analyzed, critiqued, or commented on in a secondary work of literature.

Conference Proceedings

Conference proceedings are often “works in progress” originally meant to accompany the author’s lecture or poster at a conference. They are not always peer reviewed to the same extent as articles. The author may have later published a longer article in a scholarly journal based on the conference proceeding. Conference proceedings are a primary mode of information sharing in some fields, such as computer science and engineering, physics, and mathematics.

Preprints are early versions of articles which have not been through a peer review process yet, but which the authors want their colleagues in the field to have access to anyways. Preprints help to facilitate more rapid sharing of information, for example during a pandemic, but they are also valuable ways for authors to receive feedback on their work prior to publication. These can be great sources of cutting edge information, but it’s important to remember that they still haven't completed the publication process, and the final version of the article will likely be different.

Dissertations and Theses

Dissertations are written by doctoral students as the culminating evidence of their studies in graduate school. They are meant to be an original contribution of research to the author’s field. Dissertations are reviewed carefully by a committee of university faculty before a degree is awarded. While a full dissertation is often book-length, many authors will also opt to publish parts of it as research articles.

A patent is a legal document providing evidence of intellectual copyright over an invention (usually a product, process, method, or composition), allowing the patent holder to exclude others from making, using, or selling the invention for a period of time. Patents include original evidence describing the invention, and are thus often considered primary. Once published by the US Patent and Trademark Office, they are freely available, although often difficult to locate.

Internal Reports and other "Grey Literature"

Individual organizations produce a great quantity of original material documenting their operations that is never formally published. This is commonly referred to as “grey literature.” Grey literature that could be considered primary might include internal reports, technical documents, memos, and personal communications.

This section includes original data collected in the course of research projects. “Raw” implies the data hasn’t yet been cleaned up or manipulated. This includes numerical data, tables and charts, code, maps, transcripts, photos and drawings, lab and field notebooks, sound recordings, and even material samples. Raw data is sometimes shared by researchers who value open science, but this isn’t yet a norm.

Secondary sources are a step away from the Events that primary sources document. Generally, these sources are commenting on, analyzing, interpreting, or evaluating primary sources. These types of sources help researchers contextualize what's happening in their field, and they can contribute to the direction of primary research by identifying longer-term trends and implications. In college, many of the papers and articles that students produce are secondary sources.

Review Articles

Reviews are a genre of article or book chapter which present an overview of the current state of research on a particular topic. The authors identify and analyze the most important discoveries, trends, and publications on that topic. There are different types of reviews that are prevalent in particular fields. Additionally, there are review journals that exclusively publish peer-reviewed review articles, and many edited scholarly books are collections of review articles.

Systematic Reviews and Meta-Analysis

Systematic reviews, which are most common to medical and health sciences, are a specific type of review article that attempts to answer a research question by systematically aggregating and reviewing the data from large numbers of existing primary research articles on a topic. Meta-analysis is a common statistical analysis used in systematic reviews.

Annotated Bibliographies and Other Types of Literature Reviews

Annotated bibliographies are a highly stylized form of literature review. Rather than being written as a single narrative, they present a list of sources (a bibliography) on a topic, and provide review and analysis (annotation) for each source as it relates to the theme of the bibliography. Other types of literature reviews are more likely to put selected sources into conversation with each other, by comparing and contrasting them together in an essay format rather than considering each individually.

Monographs (Books)

Most, but not all, nonfiction scholarly books that are written entirely by one or two people (as opposed to edited volumes where each chapter is by a separate author) are works of secondary literature whose purpose is to provide commentary, analysis, and critique on a theme or topic. The authors are not reporting on new information they have discovered, but they are adding to the field with their intellectual examination of existing information.

Information that is confirmed through the scientific process and through the vigorous debate played out in the literature eventually comes to be considered consensus knowledge. This type of knowledge is published in tertiary, or reference sources, whose main purpose is to present established information on a topic in easily digestible form, where it can be quickly referred to as people are working.

Encyclopedias

The purpose of an encyclopedia is to provide readers with a brief overview of established knowledge in a field. There is minimal analysis and no new information is being reported. Encyclopedias can vary widely in scope, from massive encyclopedias of everything, such as Wikipedia, to niche encyclopedias covering specific fields, such as the Encyclopedia of Chemical Technology.

Dictionaries

Dictionaries exist to provide consensus definitions of words and phrases. There are many language dictionaries, which attempt to define every word in a language, and are usually pretty large. There are also smaller subject dictionaries that attempt to provide definitions of field-specific terminology, such as the Dictionary of Materials Science.

Textbooks are not usually written either to present wholly new information to the world, or to provide analysis or critical interrogation to existing information. The purpose of textbooks is to inform and educate students on the current state of knowledge in an area.

Property Data Handbooks and Indexes

Handbooks and other tools that provide chemical property data are invaluable reference sources for chemists and other scientists who need chemical information. The data is originally discovered and published in the primary literature, but once established it is collated and presented in these handbooks and indexes where it can quickly be found and referred to as chemists are working.

Databases, Bibliographies, and Concordances

These are not "sources" in the same sense as the other sources on this list, but they are all tools that allow us to locate primary and secondary literature. In that sense, many consider databases et al to be honorary tertiary sources.

Most information is not scholarly information, of course. Most published information is meant for a wider audience than one's peers in biotoxicology. So when we talk about information as "popular" instead of scholarly, we're simply referring to information that's meant for a bigger audience. This includes scientific writing! A short list of popular literature:

• Books about astronomy that you could find in an average bookstore, often with eye-catching enhanced Hubble Telescope photos on the cover
• Scientific American, Sky and Telescope, and Popular Mechanics magazines
• MIT Technology Review
• Articles in the newspaper reporting on specific research studies

If you aren't sure whether something is popular or scholarly, think about:

• Is the author a scientist themselves? Scientists do sometimes write for larger audiences, but journalists do not write scientific literature.
• the writing style: it'll be clearer, you won't need a special dictionary to get through a paragraph, and it'll be written to keep you engaged. It may even be funny or conversational.
• are there engaging visuals involved? A beautiful or stylish cover for a book, interesting graphics to accompany articles? Scholarly articles rarely include decorative images.

Basically, if the audience is scholarly, and the purpose is to inform the audience of new research in their fields, it's scholarly. If the audience is anyone who happens to pick up a book or magazine, it's popular.

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Primary, Secondary and Tertiary Sources: Secondary

• A Quick Look
• Discipline Grid
• Library FAQs

Is it SECONDARY?

Books and journal articles discussing or analyzing Darwin's notes, sketches or theories in depth, are  SECONDARY sources. Secondary sources, which interpret, analyze, or otherwise filter primary, or other secondary, sources, are explained here.

Google Scholar

Use Google Scholar to find academic-quality information (articles, papers, reports) on the Web.

Secondary Sources: A Closer Look

Frequently, a source that is not a primary source is a SECONDARY source. Typically, secondary sources comment upon, analyze, or draw information from primary sources. Secondary sources can also interpret, critique, or explain primary sources. EXAMPLE:  

• Many books and journal articles have been written analyzing, interpreting, critiquing, refuting or corroborating Charles Darwin's thoughts on natural selection and the concept of evolution.
• Such books and journal articles are SECONDARY sources, like this e-book (electronic book) available at the NYIT Library: Darwin and Modern Science: Essays , A.C. Seward (Ed.).

Like this e-book about Charles Darwin and his science, a secondary source analyzes, interprets, filters, or otherwise discusses primary source material.

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Primary, Secondary, and Tertiary Sources: A Quick Guide: Secondary Sources

• Primary Sources
• Secondary Sources
• Tertiary Sources

What is a Secondary Source?

Secondary sources are books, periodicals, web sites, etc. that people write using the information from primary sources. They are not written by eyewitnesses to events, for instance, but use eyewitness accounts, photographs, diaries and other primary sources to reconstruct events or to support a writer's thesis about the events and their meaning. Many books you find in the Cornell Library Catalog are secondary sources.

Reference Help

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Academic Writing

• Getting Started
• Introductions
• Thesis Statements
• Organization
• Conclusions

Using Secondary Sources

• Global vs. Local Revision
• Suggestions for Revision
• Why is Grammar Important?
• Suggestions for Further Reading
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• Citing Sources This link opens in a new window

Associate Professor-Librarian

• What are Primary and Secondary Sources?
• Using Summary
• Make Your Sources Speak

What Are Primary and Secondary Sources?

A primary source is a source that you are analyzing as the writer. In other words, there is no mediary between you and the text; you are the one doing the analysis.

Some examples of primary sources:

A secondary source , then, is a source that has also done analysis of the same (or a similar) topic. You will then use this source to discuss how it relates to your argument about the primary source. A secondary source is a mediary between you and the primary source. Secondary sources can also help your credibility as a writer; when you use them in your writing, it shows that you have done research on the topic, and can enter into the conversation on the topic with other writers.

Some examples of secondary sources:

Summary: When and How Do I Use It?

  One of the important distinctions to make when coming to terms with a text is knowing when to summarize it, when to paraphrase it, and when to quote it. Here’s what Joseph Harris, author of the textbook Rewriting: How to Do Things with Texts ,  has to say:

  “Summarize when what you have to say about a text is routine and quote when it is more contentious” (21).

In other words, quote when you need to rely on the voice of the writer, when you need the language of the text to help you make a point. Otherwise, try to use paraphrase or summary, so that your ideas are still the main focus.

 Summarizing a text can distract your reader from your argument, especially if you rely on lengthy summaries to capture a source in a nutshell. However, it can also prove an effective rhetorical tool: you just need to know when to use it.

You can use summary in the following ways:  

         - When the source offers important background about your ideas

       - When you need to provide your readers with an overview of a source’s entire argument before analyzing certain ideas from it

       - When the source either supports your thesis, or when it offers a position you want to argue against or analyze more in-depth

Here is a sample summary. What do you notice about it?

Ryuko Kubota argues in “Ideologies of English in Japan” that the debate over English’s place in the Japanese language disappeared with the militaristic rule of the 1930s and 1940s, when Japan rejected and/or suppressed the learning of English and other languages in favor of heavy nationalism. However, he adds that the debate returned during America’s occupation of Japan and has periodically been a topic for debate since.  Japanese politicians have always seen English as an important tool for Japan’s success as an industrial nation on a global scale. However, instead of molding itself to the English of the Western world, Japan has integrated English to fit its ideologies, to serve its own needs; indeed, to become part of the Japanese language.

1. This is a succinct summary; the entire summary is only three sentences.

2. The final sentence of the paragraph is the writer's attempt to make a connection between the article and her own ideas for her paper. This is an important step in using summary; it's important to always show the reader how/why the summary is important/relevant.

Paraphrasing: When/How/Why Should I Do It?

Paraphrasing gives you the room to condense a text’s ideas into your own words.  You can use this, for example, to rewrite a definition, to emphasize important points, or to clarify ideas that might be hard for the reader to understand if you quote the original text.

When you paraphrase, remember that you still need to cite the source in-text!

Depending on your field and the style guide your field follows, you may be required to paraphrase more than quote or summarize. Make sure you are familiar with the writing conventions for your field. APA, for example, draws much more on paraphrase than MLA.

Example of a Paraphrase

Let’s look at an example of a paraphrase.  Note that here the author of this paraphrase has used the author’s name first as an attributive tag – she is letting the reader know who wrote this.  She then goes on to put the writer’s ideas into her own words, but acknowledges directly where the ideas came from by using the in-text citation at the end of the second sentence.

    - This is a paraphrase for MLA; in APA, the year would come after Honna's name in parentheses.

In source-based or synthesis writing, we try to not only express our ideas using our own voice, but to also express our ideas through the voices of those we are citing. In their book Wriiting Analytically , Rosenwasser and Stephen offer six strategies to use in researched writing to make our sources speak, to make them come alive.

Here are some typical problems we encounter when using primary and secondary sources:

     - Leaving quotations and paraphrases to speak for themselves

     - Not differentiating your own voice from the voices of your sources (ventriloquizing)

     - Resorting to overly agreeing and disagreeing as your only means of responding to a source (other than summary)

Primary and secondary sources are nothing to fear. Many times we either leave sources to speak for themselves or ignore them altogether because we are afraid of losing our own voices. These strategies, listed below, are designed to help us know when and how to use quotes, and how not to become lost in the process.

Strategy 1: Make Your Sources Speak

v Quote, paraphrase, or summarize in order to analyze , as opposed to in place of analyzing.  Don’t assume that the meaning of your source material is self-evident.  Instead, explain to your readers what the quote, paraphrase, or summary means.  For example, what aspects do you find interesting or strange?  And relate these aspects to your overall thesis.   Your focus here in analysis should be on how the source leads you to your conclusion – beware of generalizing or putting two quotes next to each other without explaining the connection.

Using Strategy #1 : How are you using your sources?  Are you taking the time to develop points from your sources, or are you just using evidence – and is it clear why you are using it?  Highlight/bracket analysis, mark in a different color where analysis is not present immediately following source.  

Strategy 2: Use Your Sources to Ask Questions, Not Just to Provide Answers

v Use your selections from your sources as a means to raise issues and questions; avoid the temptation to use selections that provide answers without any commentary or further elaboration.  If you feel stuck with this, consider the source alongside other contexts (other sources, for example) and compare and contrast them to see if there are aspects of your topic that your source does not adequately address.

Using Strategy #2: Again, ask: how are you using your sources as question generators?  What how/why questions do your sources generate?  Look over the evidence you’ve used, and jot down the how/why questions you think your evidence creates.  Next, go through your paper.  Do you see yourself addressing these questions?  Mark your analysis appropriately so you can see how you’re addressing these questions (or not).  

Strategy 3: Put Your Sources in Conversation with One Another

v This is an extension of strategy 2.  Rather than limiting yourself to the only conversationalist with each source, aim for conversation among them.  Although it is not wrong to agree or disagree with your sources, it is wrong to see these as your only possible moves.  You should also understand that although it is sometimes useful and perhaps even necessary to agree or disagree, these judgments should 1) always be qualified and 2) occur only in certain contexts .  Instead of looking just at how you agree or disagree, try to imagine what these critics might say to one another.  Looking at sources in this way may prove useful as you explore your topics further in depth.

Using Strategy #3:

    This is a way for your sources to address one another directly, while also giving you more room to expand on your ideas through a slightly different form of analysis.  For example: what might the person you interviewed think about the secondary sources you found?  Would they agree with the claims you see your sources making, or would they disagree?  Why – what about their interview suggests this?  Make a list of possible dialogues your sources could have with one another.  

Strategy 4: Find Your Own Role in the Conversation

v Even though it’s important to not be the only person in the essay agreeing and disagreeing with the texts, it is important that you establish what you think and feel about each source.  After all, something compelled you to choose it, right?  In general, you have two options when you are in agreement with a source.  You can apply it in another context to qualify or expand its implications, or you can seek out other perspectives in order to break the hold it has on you.  In the first option, to do this, instead of focusing on the most important point, choose a lesser yet equally interesting point and work on developing that idea to see if it holds relevance to your topic.  The second option can also hold new perspectives if you allow yourself to be open to the possibilities of other perspectives that may or may not agree with your original source.

Using Strategy #4: While it’s important that you create a distinct voice for all the different kinds of sources you’ve used (interview, fieldwork, scholarly journals/books, etc.), it’s perhaps even more important that you have a clear role in this conversation that is your research essay.  Look over your paper: is it clear what you think?  Is it clear what is your voice, and what are the ideas/opinions of your sources? (Hint: your voice should still be clear in the midst of your sources, if you are taking the time to analyze them and develop your analysis as fully as possible.)  Highlight places where you voice – what you think – is clear.  Highlight in a different color places where your voice is unclear, or needs to be expressed more fully.

Strategy 5: Supply Ongoing Analysis of Sources (Don’t Wait Until the End)

v Instead of summarizing everything first and then leaving your analysis until the end, analyze as you quote or paraphrase a source .  This will help yield good conversation, by integrating your analysis of your sources into your presentation of them.

Using Strateg y #5:

Are your sources presented throughout the paper with careful analysis attending to each one?  Or are you presenting all your sources first, and analyzing them later?  Look through your paper, and mark places where you see yourself not analyzing your sources as you go.  Also: are there places where you see too much analysis, and not enough evidence?  Be sure to mark those places as well.  

Strategy 6: Attend Carefully to the Language of Your Sources by Quoting or Paraphrasing Them

v Rather than generalizing broadly about the ideas in your sources, you should spell out what you think is significant about their key words.  Quote sources if the actual language they use is important to your point; this practice will help you to present the view of your source fairly and accurately.  Your analysis will also benefit from the way the source represents its position (which may or may not be your position) with carefully chosen words and phrases.  Take advantage of this, and use the exact language to discuss the relevance (or not) of the quote to the issue you’re using it for.

Using Strategy #6: When paraphrasing or quoting a source, it’s important that you use the language of the source to help explain it – it keeps the reader in the moment with you, and helps him/her understand the key terms of that source – why you chose, why these words are so important, etc.  Look over your evidence, both quoted and paraphrased: are you using the language of the quote to help explain it?  Or is your analysis removed from the “moment of the source” (i.e. the language which the source uses to illustrate its point)?  Mark places where you think it’s important to use the language of the source to help analyze and develop the evidence more completely.  

• Strategies for Using Quotes
• Floating Quotations
• How to Integrate Quotations

Attributed Quotations

Integrated Quotations

Strategies for Using Quotations In-Text

Acknowledge sources in your text, not just in citations:  

      “According to Lewis” or “Whitney argues.”

Use a set-up phrase, and splice the most important part of quotations in with your own words:

     According to Paul McCartney, “All you need is love.”

  Or phrase it with a set-up:

     Patrick Henry’s famous phrase is one of the first American schoolchildren memorize:

     “Give me liberty, or give me death.”

Anytime you use a quote, cite your source after the quotation:  

     Maxine Greene might attribute this resistance to “vaguely perceived expectations; they

     allow themselves to be programmed by organizations and official schedules or forms” (43).

Use ellipses to shorten quotations:

      “The album ‘OK Computer’ …pictured the onslaught of the information age and a young

        person’s panicky embrace of it” (Ross 85) .

Use square brackets to alter or add information within a quotation:  

      Popular music has always “[challenged] the mores of the older generation,” according to

      Nick Hornby.

Acc ording to Janet Gardner in her book Writing About Literature , there are three ways that we tend to use quotes:

Gardner advocates that we stay away from “floating quotations,” use at least an “attributed quotation,” and use “integrated quotations” as much as possible.

You will recognize a floating quotation when it looks as though the writer has simply lifted the passage from the original text, put quotations around it, and (maybe) identified the source.

Doing this can create confusion for the reader, who is left to guess the context and the reason for the quote.

This type of quoting reads awkward and choppy because there is no transition between your words and the language of the text you are quoting.

Example of a Floating Quotation; text taken from All She was Worth , by Miyuki Miyabe    

  Both Honma and Kyoko were rejected and looked down upon by Jun and Chizuko’s family when entering into marriage with their respective partners. “About her cousin – Jun’s father – and his family: what snobs they were, with fixed ideas on education and jobs” ( Miyabe 17).This passage shows that Honma and Kyoko were both being judged by their future in-laws by superficial stipulations.

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• Research Guides

Primary Sources: A Research Guide

• Primary vs. Secondary
• Historical Newspapers
• Book Collections
• Find Videos
• Open Access
• Local Archives and Archival Societies
• University Archives and Special Collections at UMass Boston

Primary Sources

Texts of laws and other original documents.

Newspaper reports, by reporters who witnessed an event or who quote people who did.

Speeches, diaries, letters and interviews - what the people involved said or wrote.

Original research.

Datasets, survey data, such as census or economic statistics.

Photographs, video, or audio that capture an event.

Secondary Sources

Secondary Sources are one step removed from primary sources, though they often quote or otherwise use primary sources. They can cover the same topic, but add a layer of interpretation and analysis. Secondary sources can include:

Most books about a topic.

Analysis or interpretation of data.

Scholarly or other articles about a topic, especially by people not directly involved.

Documentaries (though they often include photos or video portions that can be considered primary sources).

When is a Primary Source a Secondary Source?

Whether something is a primary or secondary source often depends upon the topic and its use.

A biology textbook would be considered a secondary source if in the field of biology, since it describes and interprets the science but makes no original contribution to it.

On the other hand, if the topic is science education and the history of textbooks, textbooks could be used a primary sources to look at how they have changed over time.

Examples of Primary and Secondary Sources

Adapted from Bowling Green State University, Library User Education, Primary vs. Secondary Sources .

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Philosophy: A Guide to Research

• About this Guide
• Getting Started with Research
• Finding Peer-Reviewed Articles

Primary & Secondary Sources

Tips for finding primary sources, books in milne library's reference collection, databases available through milne library, websites for primary sources.

• Finding a Book at Milne Library
• Citations This link opens in a new window
• Get Library Help
• Self-Guided Tour of the James M. Milne Library
• SUNY Oneonta Philosophy Department This link opens in a new window

Primary sources  are documents or objects that provide direct, first-hand evidence. A secondary source  analyzes, discusses, summarizes, and comments upon primary sources. Secondary sources are one step removed from the original, primary source.

Disciplines define primary sources differently. To the scientist, they might be reports of original research or personal papers; to the journalist, they might be interviews or letters. 

In Philosophy, examples of primary sources can include:

• philosophical texts, treatises, meditations 
• personal narratives, diaries, memoirs, correspondence, letters

( Primary Sources - Philosophy - Subject Guides at University of Alberta Libraries (ualberta.ca)  available under a  Creative Commons — Attribution-NonCommercial-ShareAlike 4.0 International — CC BY-NC-SA 4.0 ) 

Examples of secondary sources include:

• biographies
• critical analysis
• second-person account
• historical study 
• journal article summarizing or examining previous findings

Primary sources may be available in print, in library databases, on websites, or in microform collections. Print primary sources, or print reproductions of primary sources, are sometimes available in archives and libraries.  In addition, primary sources are increasingly found online in digitized form. These may be found in library databases or on websites. Primary sources are also available in m icroform, a format that has been used for many years to preserve documents, as well as to save storage space. 

Tips for finding primary sources:

When searching print and online access tools use search terms such as SOURCES , CORRESPONDENCE , PERSONAL NARRATIVES , DIARIES , RECORDS AND CORRESPONDENCE , SERMONS , SPEECHES , PAPERS , LETTERS.

Look for titles of primary sources in secondary sources and in lists included in bibliographies of secondary sources. Use text, class, and library bibliographies for recommended titles or listings of primary sources.

Browse library shelves around other relevant books. This is often a wonderful way to discover collections of primary sources that have been published in a book format.

On this guide you will find a partial listing of primary source materials available in Milne Library. This includes a listing of reference books , databases , websites , and  microform collections containing primary source materials.  Remember, this is only a partial listing.  More primary sources can be found through searching print and online access tools and browsing the library shelves in relevant areas.

Below is a  partial  listing of books in Milne Library’s Reference Collection that may be helpful for primary source research. Some titles only list sources, whereas others include the text of sources. Note the call number below each title. These items cannot be checked out. However,  students can request free photocopy of pages in print reference sources at the Research Help Desk . Staff members will attempt to make copies at the time of the request, but students should generally expect to pick up photocopies one or two days after the request has been submitted. A scanner is also available in the reference area for copying information. Assistance is available at the Research Help Desk.

Below are some databases that may be helpful for primary source research. Some databases only list sources, whereas others include the full text of sources. All of the following databases are listed on the library website alphabetically by title under the Databases tab .

• American Antiquarian Society (AAS) Historical Periodicals Collection: Series 1 This link opens in a new window Consists of over 850,000 pages including the full-text of almost every seventeenth- and eighteenth-century American title published before 1821. Areas covered include Afro-Americana, children's literature, education, eighteenth-century imprints, leisure and hobbies, medicine, religion, the trades, and women's literature.
• American Antiquarian Society (AAS) Historical Periodicals Collection: Series 2 This link opens in a new window Presents over 1000 full-text titles dating from 1821 through 1837. Areas covered include agriculture, entertainment, history, literary criticism, and politics.
• American Antiquarian Society (AAS) Historical Periodicals Collection: Series 4 This link opens in a new window Provides a diverse record of life leading up to and during the Civil War, from 1853-1865. News from the battlefront can be found in addition to science, literature, medicine, agriculture, women’s fashion, family life, and religion.

• Archives of Latin American & Caribbean History, 16th-20th Century This link opens in a new window Primary source documents about Latin America and the Caribbean. Includes academic journals, reference articles, news-feeds, maps, statistics, audio and video as well as over 1.3 million pages of historical material.
• China: Trade, Politics and Culture 1793-1980 This link opens in a new window English-language sources relating to China and the West, 1793-1980. Manuscripts encompassing events from the earliest English embassy to the birth and early years of the People’s Republic. Sources describing the lives and work of missionaries in China from 1869-1970.
• European Views of the Americas: 1493 to 1750 This link opens in a new window EBSCO Publishing, in cooperation with the John Carter Brown Library, created this resource from "European Americana: A Chronological Guide to Works Printed In Europe Relating to The Americas, 1493-1750". Contains more than 32,000 entries. Index only.
• Harpweek - The Civil War Era: 1857-1865 This link opens in a new window HarpWeek is the full-text, full-image electronic version of Harpers Weekly. Coverage is from 1857-1865.
• Historic Documents This link opens in a new window For more than 40 years, Historic Documents has made primary source research easy by presenting excerpts from documents on the important events of each year for the United States and the world. Each volume includes approximately 70 events with well over 100 documents from the previous year, from official or other influential reports and surveys, to speeches from leaders and opinion makers, to court cases, legislation, testimony, and much more. Full-source citations are provided. Readers have easy access to material through a detailed, thematic table of contents and a cumulative five-year index that directs them to related material in earlier volumes. This page contains the most recent and past editions of Historic Documents.
• JSTOR 19th-Century British Pamphlets This link opens in a new window Created by Research Libraries UK. Contains the most significant British pamphlets from the 19th century held in UK research libraries. Pamphlets cover the key political, social, technological, and environmental issues of their day.
• LitFinder: Primary Sources & Literary Works This link opens in a new window Resource for full-text literary works, including poems, short stories, novels, essays, plays and speeches.
• Maps of New York: Paul Baumann Archive 260 maps --USGS (United States Geological Survey) 15 Minute Quadrangle series of New York State. Over the years many of the maps in this series have deteriorated due to usage and time and other maps have just disappeared. These maps were produced between 1895 and 1955 and predate the current 7 ½ Minute Quadrangle series. They represent a great geographical and historical resource for understanding the nature of the state and its many communities. Open access

• New York State Historic Newspapers The NYS Historic Newspapers project provides free online access to a wide range of newspapers chosen to reflect New York's unique history. Use the Search Tab to search the entire collection, or click on a county to search or browse geographically.
• New York Times This link opens in a new window All students and faculty have unlimited access to The New York Times digital platforms, including personalized user experience, live coverage of breaking news, access to NYT articles between 1851-current, access to the International edition and Canadian, Chinese, and Spanish editions, full access to the NYT Learning Network, and access to the InEducation resource that helps faculty bring current events into the classroom. This resource includes access to archival content and replaces Historical New York Times and N ew York Times Archive . more... less... Once activated, a faculty/staff pass is valid for 1460 days. A student pass is valid up to the graduation year they enter when they sign up for a pass. After the pass expires, faculty and staff can easily renew their access by re-entering their email address at http://accessnyt.com.
• Readers' Guide Retrospective, 1890-1992 This link opens in a new window Provides indexing of over three million articles from more than 550 leading magazines including full coverage of the original print volumes of Readers’ Guide to Periodical Literature. This resource offers researchers access to information about history, culture and seminal developments across nearly a century. Readers’ Guide Retrospective: 1890-1982 includes all the information from 44 Readers’ Guide to Periodical Literature annuals, as well as access to over three million articles from approximately 550 leading magazines.
• Times Digital Archive: 1785-2019 This link opens in a new window The Times Digital Archive is a fully searchable database of The Times (of London) newspaper.
• Victorian Popular Culture Despite the name, Victorian Popular Culture provides access to a wide range of primary source material related to popular entertainment in America and Europe in the period from 1779 to 1930.

Primary sources are increasingly found online in digitized form.  Listed below are some websites that contain primary source materials.  Consult your instructor on whether you are allowed to use primary source materials available via websites.

• Chronicling America: Historic American Newspapers (Library of Congress) - Search select American historic newspaper pages from 1836-1922 or use the U.S. Newspaper Directory to find information about American newspapers published between 1690-present.
• Digital Public Library of America - Virtual library of millions of items from 2,000 American libraries, archives, and museums documenting American cultural heritage. Can search and scan through the united collection of millions of items, including by timeline, map, format, subject, and partner.
• Internet History Sourcebooks Project  (Fordham University) - A collection of public domain and copy-permitted historical texts presented cleanly (without advertising or excessive layout) for educational use.
• New York Heritage Digital Collections  - Provides free access to more than 170 distinct digital collections, totaling hundreds of thousands of items representing a broad range of historical, scholarly, and cultural materials held in libraries, museums, and archives throughout the state. Collection items include photographs, letters, diaries, directories, maps, newspapers, books, and more.
• World Digital Library - Makes available on the Internet, free of charge and in multilingual format, significant primary materials from all countries and cultures.
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Last Updated: Jun 27, 2023 Views: 6266

Secondary Sources are written after something has happened and has the benefit of hindsight. This information includes interpretations and evaluations of primary information. Examples of secondary sources include:

• a critique of a poem, play, or piece of literature
• a history book based on primary historical sources
• a scientific report based on experimental notes
• commentaries and criticisms
• biographical works
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Library Research Guide for the History of Science: Introduction

• What is a Primary Source?
• Senior Theses 2023
• Background and Context/Biography
• Exploring Your Topic
• Using HOLLIS
• What is a Secondary Source?

Page Contents

Knowing a primary source when you see one, kinds of primary sources, find primary sources in hollis, using digital libraries and collections online, using bibliographies.

• Exploring the Special Collections at Harvard
• Citing Sources & Organizing Research

Primary sources provide first-hand testimony or direct evidence concerning a topic under investigation. They are created by witnesses or recorders who experienced the events or conditions being documented.

Often these sources are created at the time when the events or conditions are occurring, but primary sources can also include autobiographies, memoirs, and oral histories recorded later.

Primary sources are characterized by their content, regardless of the format available. (Handwritten notes could be published; the published book might be digitized or put on microfilm, but those notes are still primary sources in any format).

Some types of primary sources:

• Original documents (excerpts or translations acceptable): Diaries, speeches, manuscripts, letters, interviews, news film footage, contemporary newspaper articles, autobiographies, official records, pamphlets, meeting notes, photographs, contemporary sketches
• Creative works : Poetry, drama, novels, music, art 
• Relics or artifacts : Furniture, clothing, buildings

Examples of primary sources include:

• A poster from the Brotherhood of Sleeping Car Porters' 1962 strike
• The papers of William James
• A 1970 U.S. State Dept document updating Nixon on U.S.-Soviet space cooperation activities (Harvard login)
• A British pamphlet: "Electric Lighting for Country Houses," 1898
• Phineas Gage's skull
• The text of J. Robert Oppenheimer's "Atomic Weapons" presentation to the American Philosophical Society

Outline of Primary Sources for History

Archives and Manuscripts

Archives and manuscripts are the unpublished records of persons (letters, notes, diaries, etc.) and organizations. What are Archives?   Usually each archival collection has a (short) catalog record and a detailed finding aid (which is often available online).

• "Catalog record” refers to the kind of record found in library online catalogs, similar to those for books, although often a bit longer. Example of an Archive record .
• “Finding aid” (sometimes called an inventory) generally refers to a list of the folder labels for the collection, accompanied by a brief collection overview (scope and contents note) and a biographical (or institutional) note on the creator of the collection.  Finding aids may be as long as needed given the size of the collection.  They vary considerably according to the practices of individual repositories. Example of a Finding aid .

To find  Archives and manuscripts  at Harvard, go to  HOLLIS Advanced search .  Search your keywords or Subject terms (see the  HOLLIS page of this guide ) in the Library Catalog, limiting to Resource Type: Archives/Manuscripts.  You can choose the library at the right (Search Scope).  Countway  Medicine has abundant medical archives, and Schlesinger has many archives of women activists, many in health and reproductive rights fields.    Sample search on Subject: Women health .

Library Research Guide for Finding Manuscripts and Archival Collections explains

• How to find archives and manuscripts at Harvard
• How to find archives and manuscripts elsewhere in US via search tools and via subject guides .
• How to find archives and manuscripts in Europe and elsewhere.
• Requesting digitization of archival material from Harvard and from other repositories .

For digitized archival material together with other kinds of primary sources:

• Finding Primary Sources Online offers general instructions for finding primary sources online and a list of resources by region and country
• Online Primary Source Collections for the History of Science lists digital collections at Harvard and beyond by topic.
• Online Primary Source Collections for History lists digital collections at Harvard and beyond by topic.

Methods for finding books are described under the HOLLIS page  of this guide and in the Finding Primary Sources in HOLLIS box on this page. 

• Book Reviews may give an indication as to how a scientific work was received. See:   Finding Book Reviews . 
• Numerous, especially pre-1923 books (as well as periodicals and other sources) can be found and full text searched in several digital libraries (see box on this page).

Periodicals

Scientific articles :

Web of Science Citation Indexes (Harvard Login)  (1900- ) articles in all areas of science. Includes medical articles not in PubMed. You can use the Cited Reference search in the Web of Science to find primary source articles that cite a specified article, thus getting an idea of its reception. More information on the Web of Science .

PubMed (1946- ) covers, usually with abstracts, periodical articles on all areas of medicine. - --Be sure to look at the MeSH (Medical Subject Headings)  at the bottom of pertinent records. Very recent articles may not as yet received their MeSH terms.  So look at older records to find the MeSH terms, and use a variety of keywords as well as MeSH terms to find the new records. --​The MeSH terms are the same as the Medical Subject terms found in HOLLIS. --Hit Free article or Try Harvard Library, not the publisher's name to see full text

JSTOR (Harvard Login)  offers full-text of complete runs (up to about 5 years ago) of over 400 journals. JSTOR allows simultaneous or individual searching, full-text searching optional, numerous journals in a variety of fields of science and medicine. See the list at the bottom of the Advanced search screen. JSTOR searches the "Notes and News" sections of journals ( Science is especially rich in this material). In Advanced Search choose Item Type: Miscellaneous to limit largely to "Notes and News".

PsycINFO) (Harvard Login)  (1872- ) indexes the professional and academic literature in psychology and related disciplines

Many more scientific periodical indexes are listed in the Library Research Guide for the History of Science .

General interest magazines and periodicals see:

American Periodicals Series Online (Harvard Login)  (1740-1900) offers full text of about 1100 American periodicals. Includes several scientific and medical journals including the American Journal of Science and the Medical Repository. In cases where a periodical started before 1900, coverage is included until 1940.

British Periodicals (Harvard Login)  (1681-1920) offers full text for several hundred British periodicals.

Ethnic NewsWatch (Harvard Login)  (1959- ) is a full text database of the newspapers, magazines, and journals of the ethnic, minority and native press.

Periodicals Index Online (Harvard Login)  indexes contents of thousands of US and European journals in the humanities and social sciences, from their first issues to 1995.

Reader's Guide Retrospective (WilsonWeb) (Harvard Login)  (1890-1982)  indexes many American popular periodicals.

Many more general periodical indexes are listed in Finding Articles in General and Popular Periodicals (North America and Western Europe) .

Articles in non-science fields (religion, public policy): see the list in the Library Research Guide for History .

Professional/Trade : Aimed at particular trades or professions.  See the Library Research Guide for History

Newspaper articles : see the Guide to Newspapers and Newspaper Indexes .

Personal accounts . These are first person narratives recalling or describing a person’s life and opinions. These include Diaries, memoirs, autobiographies, and when delivered orally and recorded: Oral histories and Interviews.

National Library of Medicine Oral Histories

Regulatory Oral History Hub  (Kenan Institute for Ethics, Duke University) offers links to digital collections containing interviews with regulators, lawyers, and judges. Mainly U.S.

Visual sources :

Records for many, but by no means all, individual Harvard University Library images are available in  HOLLIS Images , an online catalog of images. Records include subjects and a thumbnail image.  HOLLIS Images is included in HOLLIS  searches.

Science & Society Picture Library offers over 50,000 images from the Science Museum (London), the National Museum of Photography, Film & Television and the National Railway Museum.

Database of Scientific Illustrators  (DSI) includes over 12500 illustrators in natural history, medicine, technology and various sciences worldwide, c.1450-1950. Living illustrators excluded. 

NYPL Digital Gallery Pictures of Science: 700 Years of Scientific and Medical Illustration

Images from the History of Medicine (IHM) includes prints and photographs from the U.S. National Library of Medicine. (The IHM is contained within a larger NLM image database, so this link goes to a specialized search).

Images From the History of the Public Health Service: a Photographic Exhibit .

Wellcome Images

Films/Videos

To find films in  HOLLIS , search your topic keywords, then on the right side of the results screen, look at Resource Type and choose video/film.

To find books about films about your topic, search your topic keywords AND "in motion pictures" ​  (in "")

​Film Platform  offers numerous documentary films on a wide variety of subjects.  There are collections on several topics. Searches can be filtered by topic, country of production, and language. 

A list of general sources for images and film is available in the Library Research Guide for History and additional sources for the history of science in Library Research Guide for the History of Science .

Government documents often concern matters of science and health policy.  For Congressional documents, especially committee reports, see ProQuest Congressional (Harvard Login ). 

HathiTrust Digital Library . Each full text item is linked to a standard library catalog record, thus providing good metadata and subject terms. The catalog can be searched separately.  Many government documents are full text viewable.  Search US government department as Author.

More sources are listed in the Library Research Guide for History

For artifacts and other objects , the Historic Scientific Instruments Collection in the Science Center includes over 15,000 instruments, often with contemporary documentation, from 1450 through the 20th century worldwide.

Waywiser, online database of the Collection of Historical Scientific Instruments .

Warren Anatomical Museum of the Center for the History of Medicine in the Countway Library of Medicine has a rich collection of medical artifacts and specimens.

Peabody Museum of Archaeology and Ethnology

Fall 2020: these collections are closed during the pandemic. Check out their links above to see what they have available online.

Primary Source Terms :

You can limit HOLLIS  searches to your time period, but sources may be published later, such as a person's diary published posthumously. Find these with these special Subject terms.

You can use the following terms to search HOLLIS for primary sources:

• Correspondence
• Description and travel
• Manuscripts
• Notebooks, sketchbooks, etc.
• Personal narratives (refers to accounts of wars and diseases only)
• Pictorial works
• Sources (usually refers to collections of published primary sources)

Include these terms with your topical words in HOLLIS searches. For example: tuberculosis personal narratives

Online Primary Source Collections for the History of Science lists digital collections at Harvard and beyond by topic

Google Book Search, HathiTrust Digital Library and Internet Archives offer books and periodicals digitized from numerous libraries.  Only out-of-copyright, generally post-1923, books are fully viewable.  Each of these three digital libraries allows searching full text over their entire collections.

Google Book Search

HathiTrust Digital Library . Each full text item is linked to a standard library catalog record, thus providing good metadata and subject terms. The catalog can be searched separately.  Many post-1923 out-of-copyright books, especially government documents, are full text viewable. You can search within copyright books to see what page your search term is on.

Internet Archive now offers a beta full text search. Put your terms (phrases or personal names, in quotation marks (""), work best) in the search box. 

The Online Books Page arranges electronic texts by Library of Congress call numbers and is searchable (but not full text searchable).  Includes books not in Google Books, HathiTrust, or Internet Archive. Has many other useful features.

Medical Heritage Library . Information about the Medical Heritage Library. Now searchable full text.

UK Medical Heritage Library

Biodiversity Heritage Library

Contagion: Historical Views of Diseases and Epidemics (1493-1922) provides digitized historical, manuscript, and image resources selected from Harvard University libraries and archives.

Expeditions and Discoveries (1626-1953) features nine expeditions in anthropology and archaeology, astronomy, botany, and oceanography in which Harvard University played a significant role. Includes manuscripts and records, published materials, visual works, and maps from 14 Harvard repositories.

Defining Gender Online: Five Centuries of Advice Literature for Men and Women (1450-1910).

Twentieth Century Advice Literature: North American Guides on Race, Sex, Gender, and the Family.

Many more general History digital libraries and collections: Library Research Guide for History

More History of Science digital libraries: Library Research Guide for the History of Science .

There may already be a detailed list of sources (a bibliography) for your topic.

For instance:

A bibliography of eugenics , by Samuel J. Holmes ... Berkeley, Calif., University of California press, 1924, 514 p. ( University of California publications in zoology . vol. XXV)  Full text online .

Look for specialized subject bibliographies in HOLLIS Catalog . Example .   WorldCat can do similar searches in the Subject Keyword field for non-Harvard holdings.

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Honeybees Invaded My House, and No One Would Help

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By Sarah Kliff

• Published April 30, 2024 Updated May 2, 2024, 11:15 a.m. ET

Responding to fears of a “honeybee collapse,” 30 states have passed laws to protect the pollinators. But when they invaded my house, I learned that the honeybees didn’t need saving.

I noticed the first bee one afternoon as my dog gleefully chased it around the house. When the pest settled on a window by the stairwell, I swatted it with a cookbook and cleaned up the mess.

Five minutes later, another bee buzzed at the same window. Then a third in my kids’ room. When I heard a loud droning coming from inside a wall next to my son’s bed, the ominous situation finally hit me: The house was infested.

Listen to this article with reporter commentary

This was early April, the start of “swarm season,” when honeybee colonies search for places to build new hives. A small gap in the roof gave them access to our attic and put us on the honeybee real estate market.

But in those first frantic hours, as I darted from room to room slamming the book on them, we thought the insects might be wasps. My husband called an exterminator, who agreed to come the next morning. Then a bee-loving friend who saw a photo told us they were honeybees. When we updated the exterminator, he canceled the appointment.

Once honeybees move in, it turns out, they are particularly difficult to evict.

Over the past two decades, fears of a collapsing honeybee population have inspired elegiac journalism and 30 state laws aiming to protect pollinators. Three states have given special tax breaks to beekeepers, and others have devoted millions to studying the disappearing colonies. In Washington, where I live, the DC Beekeepers Alliance notes that it is “illegal for pest control contractors to spray honeybees.”

As evening approached and a gray cloud of bees grew steadily outside our roof’s crack, we headed to a hotel, kids and energetic dog in tow. My 2-year-old danced around pretending to be a bee, her hands pointed into a stinger. My 5-year-old asked why the bees had chosen our house. Great question, bud.

My husband and I stared at our phones on the crisp hotel sheets, panic-searching online for answers. Bee species and humans are the only animals that can communicate directions to a new place without directly leading others there. And honeybees engage in an elaborate, democratic process to choose new homes. They prefer to build hives in tight spaces about the size of a large backpack, often within crawl spaces, walls and attics. Once established in a comfy spot, they can stay there indefinitely, building hives and producing honey.

We sent a few panicked messages to local WhatsApp groups, read blog posts about citronella deterrents and found a “ bee repellent ” Spotify track that sounded like a never-ending beep. We commanded the Alexa speaker back in our kids’ room to play the noise on loop all night.

The next morning, we returned to the infestation and started working the phones, to much disappointment. “When we identify a honeybee issue, we try to have a local beekeeper assist,” Ben Hottel, an entomologist and spokesman for Orkin, a pest control company, later told me.

One exterminator finally agreed to come by, only to dash our hopes upon arrival. He wouldn’t touch the bees but said that he knew a contractor who would commit illicit bee murder. We declined.

I considered buying a can of Raid, but I felt too guilty. I had a vague sense that honeybees needed saving, and some of my neighbors felt strongly about the issue. “They are so important to our ecosystem,” one neighbor advised on WhatsApp. “Their number is dwindling.” She suggested we call a beekeeper.

So we tried the swarm squad , a volunteer group of beekeepers who will collect wayward colonies. Unfortunately, the squad generally only deals with outdoor hives. A representative recommended a dozen other beekeepers with indoor expertise.

Every one of them told me the same thing: Our problem was too small.

When a colony is looking for a new home, it sends out a few hundred “scouts” to find options, each visiting 10 to 20 possible locations. When a scout likes a place, it returns to the hive and performs a “waggle” dance that tells its brethren exactly how far and in what direction they need to travel to find the potential home. The more vigorous the dance, the more a scout likes the location. Eventually, the thousands of hive dwellers vote on which place they like best.

Apparently, scouts were sizing up our home. To us, they were plenty alarming on their own. But the beekeepers reassured us that they were unlikely to sting; they didn’t have a hive or queen to defend. Call us back, they said, when you see a few thousand bees.

There was little else to do but wait and see if the colony would choose us. I repacked our suitcase for another night away. Maybe this was my family’s small contribution to saving an imperiled species, I thought.

What I wish I had known then: Honeybees do not need saving.

The same week that the bees turned up at my house, the journalist Bryan Walsh revisited a 2013 cover story for Time magazine in which he had lamented a future “world without bees.” Looking back, he said, the article didn’t hold up.

“A lot of the coverage at the height of the beepocalypse fears — my story included — used the mass death of honeybees as a symbol of how human beings had pulled nature out of whack,” Mr. Walsh wrote in a new essay in Vox . “But it’s not.”

Just last month, new federal data showed that the number of honeybee colonies has increased by 31 percent since 2007. A vast majority of those insects are used in commercial farming, carted from state to state to pollinate crops.

“Honeybees are not endangered nor at risk of extinction,” noted a 2023 report from the Xerces Society for Invertebrate Conservation. “The fact that honeybees are domesticated and managed negates the possibility of being endangered.”

Honeybees are an invasive species that were brought to the United States from Europe. Saving one of their colonies can actually hurt native bees, many of which are endangered. A recent study in Montreal found that when the number of honeybee hives rose in part of the city, the number of native bees declined.

“You are not helping a wild species” when you save a honeybee swarm, said Rich Hatfield, a senior conservation biologist at Xerces. “You are introducing 10,000 to 50,000 mouths to feed to an environment that may not have enough resources.”

The bees in my house were looking for resources. Left on our own, we cobbled together a plan to make our real estate seem as unappealing as possible.

We tried to sequester as many of the honeybees as possible in the attic. It was better if they didn’t leave, the beekeepers had said, so they couldn’t go waggle to their friends. They gravitate toward light, so we flipped on a lightbulb and watched a dozen immediately swarm around it.

Two beekeepers gave us their blessing to kill the honeybees that had already made it into our house, suggesting a vacuum method. Within minutes, honeybees filled our Dyson.

Bees are most active in the warm temperatures of late afternoon. We anxiously waited for a swarm to descend. Around 4 p.m. we went outside and stared at the sky, just as we had a few days earlier for the solar eclipse .

The swarm never showed. By evening, fewer bees were roaming around the house, and the attic buzzing had grown softer. We slept at home with the Dyson near the bed.

The next morning, my son discovered dead bees in his playroom, and the dog ate some carcasses on the floor. Thirty-six hours after the honeybees had arrived, they were gone.

Stunned by the bizarre experience, I called Thomas Seeley, a professor at Cornell who has studied honeybee behavior for more than 40 years.

Ours had been a close call, Dr. Seeley said. The fact that a scout bee’s shimmy had convinced scores of others to check out our house meant that we were “clearly on the list of serious possibilities,” he said.

I peppered him with mitigation questions. Should we have tried citronella candles? No, they actually like that smell, he said, but moth balls could have helped. And what about the beeping Spotify track — did that help steer them away? Bees can’t hear, he said.

I searched for honeybee-related posts on my neighborhood email listserv, where people regularly write in looking for exterminators. “Don’t worry folks, I’m pro-bees!” read one message from a neighbor with a swarm last spring.

I noticed a new post, dated one week after the bees had left us. Bees had taken root on the poster’s deck, she said, attaching a photo of a dense yellow swarm. Perhaps, I thought, our scouts had found their new home.

“Called 311 and they weren’t super interested,” she wrote. “Any ideas? We’d like to save these bees.”

Audio produced by Parin Behrooz .

Video illustration by Yann Guichaoua/Creatas Video+/Getty Images

Sarah Kliff is an investigative health care reporter for The Times. More about Sarah Kliff

The Great Read

Here are more fascinating tales you can’t help reading all the way to the end..

When an illegal smoke shop opened across the street, an Upper West Side councilwoman, vowed to close it. What happened next was “like a Fellini movie.”

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The best new science fiction books of May 2024

A new Stephen King short story collection, an Ursula K. Le Guin reissue and a celebration of cyberpunk featuring writing from Philip K. Dick and Cory Doctorow are among the new science fiction titles published this month

By Alison Flood

A new short story collection from Stephen King, You Like It Darker, is out in May

Shane Leonard

Every month, I trawl through publishers’ catalogues so I can tell you about the new science fiction being released. And every month, I’m disappointed to see so much more fantasy on publishers’ lists than sci-fi. I know it’s a response to the huge boom in readers of what’s been dubbed “ romantasy ”, and I’m not knocking it – I love that sort of book too. But it would be great to see more good, hard, mind-expanding sci-fi in the offing as well.

In the meantime, there is definitely enough for us sci-fi fans to sink our teeth into this month, whether it’s a reissue of classic writing from Ursula K. Le Guin, some new speculative short stories from Stephen King or murder in space from Victor Manibo and S. A. Barnes.

Last month, I tipped Douglas Preston’s Extinction and Sofia Samatar’s The Practice, the Horizon, and the Chain as books I was looking forward to. I can report that they were both excellent: Extinction was a lot of good, clean, Jurassic Park -tinged fun, while Samatar’s offering was a beautiful and thought-provoking look at life on a generation ship.

The Language of the Night: Essays on writing, science fiction, and fantasy by Ursula K. Le Guin

There are few sci-fi and fantasy writers more brilliant (and revered) than Ursula K. Le Guin. This reissue of her first full-length collection of essays features a new introduction from Hugo and Nebula award-winner Ken Liu and covers the writing of The Left Hand of Darkness and A Wizard of Earthsea , as well as her advocacy for sci-fi and fantasy as legitimate literary mediums. I’ve read some of these essays but not all, and I won’t be missing this collection.

Nuclear War: A Scenario by Annie Jacobsen

This isn’t science fiction, not quite, but it is one of the best and most important books I have read for some time. It sees Jacobsen lay out, minute by minute, what would happen if an intercontinental ballistic missile hit Washington DC. How would the US react? What, exactly, happens if deterrence fails? Jacobsen has spoken to dozens of military experts to put together what her publisher calls a “non-fiction thriller”, and what I call the scariest book I have possibly ever read (and I’m a Stephen King fan; see below). We’re currently reading it at the New Scientist Book Club, and you can sign up to join us here .

Read an extract from Nuclear War: A scenario by Annie Jacobsen

In this terrifying extract from Annie Jacobsen’s Nuclear War: A Scenario, the author lays out what would happen in the first seconds after a nuclear missile hits the Pentagon

The Big Book of Cyberpunk (Vol 1 & 2)

Forty years ago, William Gibson published Neuromancer . Since then, it has entranced millions of readers right from its unforgettable opening line: “The sky above the port was the color of television, tuned to a dead channel…”. Neuromancer gave us the literary genre that is cyberpunk, and we can now welcome a huge, two-volume anthology celebrating cyberpunk’s best stories, by writers from Cory Doctorow to Justina Robson, and from Samuel R. Delaney to Philip K. Dick. I have both glorious-sounding volumes, brought together by anthologist Jared Shurin, on my desk (using up most of the space on it), and I am looking forward to dipping in.

You Like It Darker by Stephen King

You could categorise Stephen King as a horror writer. I see him as an expert chronicler of the dark side of small-town America, and from The Tommyknockers and its aliens to Under the Dome with its literally divisive trope, he frequently slides into sci-fi. Even the horror at the heart of It is some sort of cosmic hideousness. He is one of my favourite writers, and You Like It Darker is a new collection of short stories that moves from “the folds in reality where anything can happen” to a “psychic flash” that upends dozens of lives. There’s a sequel to Cujo , and a look at “corners of the universe best left unexplored”. I’ve read the first story so far, and I can confirm there is plenty for us sci-fi fans here.

Enlightenment by Sarah Perry

Not sci-fi, but fiction about science – and from one of the UK’s most exciting writers (if you haven’t read The Essex Serpent yet, you’re in for a treat). This time, Perry tells the story of Thomas Hart, a columnist on the Essex Chronicle who becomes a passionate amateur astronomer as the comet Hale-Bopp approaches in 1997. Our sci-fi columnist Emily Wilson is reviewing it for New Scientist ’s 11 May issue, and she has given it a vigorous thumbs up (“a beautiful, compassionate and memorable book,” she writes in a sneak preview just for you guys).

Ghost Station by S.A. Barnes

Dr Ophelia Bray is a psychologist and expert in the study of Eckhart-Reiser syndrome, a fictional condition that affects space travellers in terrible ways. She’s sent to help a small crew whose colleague recently died, but as they begin life on an abandoned planet, she realises that her charges are hiding something. And then the pilot is murdered… Horror in space? Mysterious planets? I’m up for that.

In Hey, Zoey, the protagonist finds an animatronic sex doll hidden in her garage

Shutterstock / FOTOGRIN

Hey, Zoey by Sarah Crossan

Hot on the heels of Sierra Greer’s story about a sex robot wondering what it means to be human in Annie Bot , the acclaimed young adult and children’s author Sarah Crossan has ventured into similar territory. In Hey, Zoey , Dolores finds an animatronic sex doll hidden in her garage and assumes it belongs to her husband David. She takes no action – but then Dolores and Zoey begin to talk, and Dolores’s life changes.

How to Become the Dark Lord and Die Trying by Django Wexler

Davi has tried to take down the Dark Lord before, rallying humanity and making the final charge – as you do. But the time loop she is stuck in always defeats her, and she loses the battle in the end. This time around, Davi decides that the best thing to do is to become the Dark Lord herself. You could argue that this is fantasy, but it has a time loop, so I’m going to count it as sci-fi. It sounds fun and lighthearted: quotes from early readers are along the lines of “A darkly comic delight”, and we could all use a bit of that these days.

Escape Velocity by Victor Manibo

It’s 2089, and there’s an old murder hanging over the clientele of Space Habitat Altaire, a luxury space hotel, while an “unforeseen threat” is also brewing in the service corridors. A thriller in space? Sounds excellent – and I’m keen to see if Manibo makes use of the latest research into the angle at which blood might travel following violence in space, as reported on by our New Scientist humour columnist Marc Abrahams recently.

The best new science fiction books of March 2024

With a new Adrian Tchaikovsky, Mars-set romance from Natasha Pulley and a high-concept thriller from Stuart Turton due to hit shelves, there is plenty of great new science fiction to be reading in March

In Our Stars by Jack Campbell

Part of the Doomed Earth series, this follows Lieutenant Selene Genji, who has been genetically engineered with partly alien DNA and has “one last chance to save the Earth from destruction”. Beautifully retro cover for this space adventure – not to judge a book in this way, of course…

The Downloaded by Robert J. Sawyer

Two sets of people have had their minds uploaded into a quantum computer in the Ontario of 2059. Astronauts preparing for the world’s first interstellar voyage form one group; the other contains convicted murderers, sentenced to a virtual-reality prison. Naturally, disaster strikes, and, yup, they must work together to save Earth from destruction. Originally released as an Audible Original with Brendan Fraser as lead narrator, this is the first print edition of the Hugo and Nebula award-winning Sawyer’s 26 th novel.

The Ferryman by Justin Cronin

Just in case you still haven’t read it, Justin Cronin’s gloriously dreamy novel The Ferryman , set on an apparently utopian island where things aren’t quite as they seem, is out in paperback this month. It was the first pick for the New Scientist Book Club, and it is a mind-bending, dreamy stunner of a read. Go try it – and sign up for the Book Club in the meantime!

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GSEB HSC result 2024: Gujarat Board expected to announce Class 12 science results tomorrow. Here is how to check

Gujarat secondary and higher secondary education board is expected to announc class 12 science results any time soon. as per media reports gseb is likely to release date notice today and results on may 3 on its official website—gseb.org.

The Gujarat Secondary and Higher Secondary Education Board (GSEB) is expected to announce the GSEB HSC ( Class 12th) Science results any time soon. As per media reports, GSEB is likely to release the notice today and results on Friday, i.e. May 3. Soon after the announcement, the GSEB will activate the results link on its official website, gseb.org, so that students can check it.

GSEB HSC Class 12 Results 2024 LIVE Updates

As per the trends, the GSEB will announce the Class 12 stream-wise results in a press conference. During the press conference, the GSEB will reveal the topper's name, pass percentage, gender-wise pass percentage, and other important details.

Also Read | GSEB HSC result 2024: Gujarat Board expected to announce Class 12 science results tomorrow. Here is how to check

The GSEB HSC Science results are announced with Gujarat Common Entrance Test (GUJCET) results as the scorecards are used for GUJCET Counselling.

Also Read | NEET UG Admit Card 2024 OUT! NTA releases hall ticket on exams.nta.ac.in

Gseb hsc result 2024: websites to check the results.

• GSEB official website: gseb.org

The other websites where results can be checked

• indiaresults.com
• results.shiksha
• examresults.net 

GSEB HSC result 2024: Documents required to check the results

Students can check their results by entering their login credentials like roll number, date of birth

Also Read | WBBSE Madhyamik Class 10th Result 2024 LIVE Update: West Bengal Board result OUT

Gseb hsc results 2024:step-by-step guide to check the results.

• Go to the official website of GSEB: gseb.org
• Click on HSC Science result link activated on the homepage
• A new window will open; enter your roll number and DOB
• Click on the submit button
• GSEB Class 12th result will appear on your screen
• Download the scorecard, and take a print for future reference

GSEB Class 12th result: Via SMS

Apart from the official website, students can also get their results via SMS

• Open the SMS app on your mobile
• Type GJ12S (space) RollNumber
• Send the message to 58888111
• The result will be displayed on your screen 
• Save it for future reference

GSEB HSC result 2024:Minimum marks required

Students must secure at least 33% marks to qualify for the Gujarat Board HSC exam 2024.

Also Read | NEET 2024 Admit Card highlights: NEET hall tickets out. Check direct link, steps to download here

The GSEB conducted the Class 12 examination between March 11 to March 26. Over 4 lakhs 77 thousand students had enrolled for intermediate examination. Last year, the GSEB HSC result was declared on May 2. The girls' pass percentage was 80.39%, and for boys, it was 67.03%.

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