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James Halliday McDunnough

James Halliday McDunnough is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand James Halliday McDunnough rather than just read about it. In short: James Halliday McDunnough (10 May 1877 – 23 February 1962) was a Canadian linguist, musician, and entomologist best known for his work with North American Lepidoptera, but who also made important contributions about North American Ephemeroptera. Early life McDunnough travelled with his mother and aunt to Berlin to be trained as a classical musician, studying under the great violinist Joseph Joachim.

James Halliday McDunnough — main illustration
James Halliday McDunnough — illustration

Key takeaways

  • James Halliday McDunnough belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect James Halliday McDunnough to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of James Halliday McDunnough from memory before moving on to harder problems.

Reference excerpt

James Halliday McDunnough (10 May 1877 – 23 February 1962) was a Canadian linguist, musician, and entomologist best known for his work with North American Lepidoptera, but who also made important contributions about North American Ephemeroptera.

Early life McDunnough travelled with his mother and aunt to Berlin to be trained as a classical musician, studying under the great violinist Joseph Joachim. After a season as a violinist in a symphony orchestra in Glasgow, Scotland (presumably what is now the Royal Scottish National Orchestra), he taught English to a Russian family and then decided to change careers. In 1904 he went back to study in Berlin, receiving his doctorate in zoology in 1909. Returning to North America, he worked briefly at the Marine Biological Laboratory in Woods Hole, Massachusetts and married Margaret Bertels, from Berlin. He soon learned of an important opportunity: a wealthy surgeon in Decatur, Illinois named William Barnes needed an entomologist to serve as curator and researcher for his private collection of North American Lepidoptera - probably the best in existence at the time. From 1910 to 1919 McDunnough produced, with Barnes credited as co-author, an impressive volume of research on the taxonomy of North American Lepidoptera, including the first four volumes of the privately published Contributions to the Natural History of the Lepidoptera of North America, the 1917 Check list of the Lepidoptera of Boreal America, Illustrations of the North American Species of the Genus Catocala, and numerous journal articles, 67 papers in all. He also published nine articles solely under his own name during this period. In 1918, McDunnough spent a summer helping with the Canada National Collection of Insects (now the Canadian National Collection of Insects, Arachnids and Nematodes) by arranging the microlepidoptera part of the collection. This led to his leaving the job with Barnes in 1919 and heading the newly created Division of Systematic Entomology within the Entomological Branch of the Canadian Department of Agriculture. He remained there until 1946. During those 28 years, he oversaw the development of the Canadian National Collection into a world-class repository of insect and other arthropod specimens along with an extensive library of entomological publications, conducted faunal surveys throughout Canada, and published 199 taxonomic papers. Over the same period, he also was editor for the Entomological Society of Canada's journal, The Canadian Entomologist, from 1921 to 1938. After retirement, he was appointed a research associate at the American Museum of Natural History, working there from late 1946 to 1950. In 1950, after the death of his wife, he moved to Halifax, Nova Scotia, where he became a research associate for the Nova Scotia Museum of Science, while still publishing papers through the AMNH. The following year, he became the first president of the Lepidopterists' Society. His last paper was published in the year of his death, 1962, at the age of 84.

References

Illustrations

James Halliday McDunnough: Lepidoptera collection
Lepidoptera collection

Worked examples

Example 1 — a first encounter with James Halliday McDunnough

Start with the simplest possible case. Write down what James Halliday McDunnough claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to James Halliday McDunnough before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about James Halliday McDunnough ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of James Halliday McDunnough

In research
James Halliday McDunnough appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses James Halliday McDunnough in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
James Halliday McDunnough is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1877 births, 1962 deaths, Academics from Halifax, Nova Scotia, so understanding it makes those chapters shorter.
In everyday life
Look for James Halliday McDunnough outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study James Halliday McDunnough in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what James Halliday McDunnough means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain James Halliday McDunnough out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is James Halliday McDunnough in simple terms?

James Halliday McDunnough (10 May 1877 – 23 February 1962) was a Canadian linguist, musician, and entomologist best known for his work with North American Lepidoptera, but who also made important contributions about North American Ephemeroptera. Early life McDunnough travelled with his mother and a…

Why does James Halliday McDunnough matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study James Halliday McDunnough?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on James Halliday McDunnough.

Tags

  • 1877 births
  • 1962 deaths
  • Academics from Halifax, Nova Scotia
  • Canadian academic journal editors
  • Canadian entomologists
  • Canadian lepidopterists
  • People associated with the American Museum of Natural History
  • People from Decatur, Illinois
  • People from Old Toronto
  • Taxon authorities

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