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Grace E. Pickford

Grace E. Pickford is a biology 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 Grace E. Pickford rather than just read about it. In short: Grace Evelyn Pickford (March 24, 1902 – January 20, 1986) was an American biologist and endocrinologist, known for "devising ingenious instruments and techniques" and her work on the hematology and endocrinology of fishes. Life and career Pickford was born in Bournemouth, England, in 1902.

Key takeaways

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

Reference excerpt

Grace Evelyn Pickford (March 24, 1902 – January 20, 1986) was an American biologist and endocrinologist, known for "devising ingenious instruments and techniques" and her work on the hematology and endocrinology of fishes.

Life and career Pickford was born in Bournemouth, England, in 1902. She studied at Newnham College, Cambridge University, where she was a founding member of the Cambridge University Biological Tea Club. She received the equivalent of a B.A., a "National Sciences Tripos, Pt.I", since Cambridge University did not grant B.A.s to women at that time. She then traveled to South Africa, collecting and studying earth worms (oligochaetes). In 1931 she earned her Ph.D. at Yale under Alexander Petrunkevitch based on studies of her South African oligochaete worm collections. Pickford joined the Bingham Oceanographic Laboratory at Yale in 1931, where she worked for the next forty years. She taught at the assistant professor level from 1934 to 1959, when she was promoted to associate professor, and finally made a full professor of biology at Yale in 1969, retiring shortly thereafter in 1970. Pickford also taught at the women's college Albertus Magnus, hired by Marcella Boveri. Pickford was a member of various research expeditions, including the 1951 Danish Galathea expedition, and carried out research in a wide variety of organisms. She is perhaps best known for her foundational work in the field of comparative endocrinology. She did extensive studies of the pituitary hormone prolactin, discovering that in killifish prolactin is required to maintain osmotic balance in fresh water; this work was the underpinnings for most research on prolactin in vertebrates. Pickford's 1957 monograph on the topic, "The Physiology of the Pituitary Gland of Fishes", is "considered an early and still enormously useful classic" in the field of comparative endocrinology, the "bible for scientists on the endocrinology of lower vertebrates." In the course of this work Pickford developed a number of important techniques still used today in endocrine studies. Similarly, she showed that Latimeria, like sharks, uses urea to regulate the osmotic pressure of its blood. On the 1951 Galatea expedition to the Indo-Malay region, she completed a study of Vampyroteuthis, a deep sea cephalopod that resembles both an octopus and a squid, developing "ingenious" technologies to handle the technical problems of studying in deep seas. Her large collection of water beetles is today stored at Yale's Peabody Museum of Natural History. Pickford was married from 1926 to 1933 to fellow biologist George Evelyn Hutchinson.

Notable papers GE Pickford and JW Atz, "The Physiology of the Pituitary Gland of Fishes" (New York Zoological Society 1957) FH Epstein, AI Katz, GE Pickford, "Sodium-and potassium-activated adenosine triphosphatase of gills: role in adaptation of teleosts to salt water", Science, 1967 GE Pickford, JG Phillip, "Prolactin, a factor in promoting survival of hypophysectomized killifish in fresh water", Science (1959) Grace E. Pickford, A Monograph of the Acanthodriline Earthworms of South Africa, Cambridge, England: Heffner and Sons, 1937. (Pickford's dissertation.) Grace E. Pickford, Studies on the Digestive Enzymes of Spiders. New Haven, Conn.: Connecticut Academy of Arts and Sciences, 1942. Pickford and Bayard H. McConnaughey. The Octopus bimaculatus Problem: A Study in Sibling Species. New Haven, Conn.: Peabody Museum of Natural History, 1949.

Awards Distinguished Scientist in Residence, Hiram College Wilbur Cross Medal (Yale), 1981 The Grace Pickford Medal in Comparative Endocrinology, given by the International Federation of Comparative Endocrinology Societies (IFCES) in her honour, was established in 1980. It is "the highest honour" in comparative endocrinology.

Further reading J.N. Ball, "In Memoriam Grace E. Pickford (1902-1986)", Gen Comp Endocrinol., Jan. 1987, v.65, n.1, pp. 162–165. Patricia Stocking Brown, "Early Women Ichthyologists", Environmental Biology of Fishes, v.41, pp. 9–30 (1994). Penelope Jenkin and Anna Bidder, Grace E. Pickford (Obituary), Newnham College, January 1987 N.G. Slack, "Are research schools necessary? Contrasting models of 20th century research at Yale led by Ross Granville Harrison, Grace E. Pickford and G. Evelyn Hutchinson.", J Hist Biol., v.36, n.3, pp. 501–529 (Autumn 2003). "Pickford, Grace Evelyn (1902-1986)", in Marilyn Bailey Ogilvie and Joy Dorothy Harvey, eds., Biographical Dictionary of Women in Science, pp. 1020–1021. G. Evelyn Hutchinson Papers, Yale University (letters and other information about his sort marriage and lifelong friendship with Pickford)

Notes

Worked examples

Example 1 — a first encounter with Grace E. Pickford

Start with the simplest possible case. Write down what Grace E. Pickford claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, 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 Grace E. Pickford 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 Grace E. Pickford 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 Grace E. Pickford

In research
Grace E. Pickford appears in biology 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 Grace E. Pickford 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
Grace E. Pickford is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1902 births, 1986 deaths, 20th-century American botanists, so understanding it makes those chapters shorter.
In everyday life
Look for Grace E. Pickford 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 Grace E. Pickford in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Grace E. Pickford 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 Grace E. Pickford out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Grace E. Pickford in simple terms?

Grace Evelyn Pickford (March 24, 1902 – January 20, 1986) was an American biologist and endocrinologist, known for "devising ingenious instruments and techniques" and her work on the hematology and endocrinology of fishes. Life and career Pickford was born in Bournemouth, England, in 1902.

Why does Grace E. Pickford matter?

Because it connects several biology 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 Grace E. Pickford?

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 Grace E. Pickford.

Tags

  • 1902 births
  • 1986 deaths
  • 20th-century American botanists
  • 20th-century American women academics
  • 20th-century American women biologists
  • 20th-century American zoologists
  • Alumni of Newnham College, Cambridge
  • American biologists
  • American endocrinologists
  • American ichthyologists
  • American women botanists
  • American women endocrinologists

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