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Arnold Guyot, Geologist. The Princetonian, vol. 8, 1883–84, p. 308.

Thomas H. Huxley, Biologist.

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G. Brown Goode, Zoologist. “Goode as a Naturalist.” Address at the G. Brown Goode Memorial Meeting, U. S. National Museum, February 13. Science, N. S., vol. 5, no. 114, March 5, 1897, pp. 373–378.

Edward Drinker Cope, Palæontologist.

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Henry Filhol, Palæontologist. Science, N. S., vol. 15, no. 388, June 6, 1902, p. 912.

Karl Alfred Von Zittel, Palæontologist. Science, N. S., vol. 19, no. 474, Jan. 29, 1904, pp. 186–188.

John Bell Hatcher, Palæontologist. “Explorations of John Bell Hatcher for the Palæontological Monographs of the U. S. Geological Survey, together with a statement of his contributions to American Geology and Palæontology.” Monographs of the U. S. Geol. Survey, vol. 49, “The Ceratopsia” by Hatcher, Marsh, Lull. Washington, 1907, pp. 17–26.

Morris Ketcham Jesup, Administrator.

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Charles Darwin, Biologist.

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John I. Northrop, Zoologist. Introduction to “A Naturalist in the Bahama Islands.” A memorial volume. 8vo. Columbia University Press, June 15, 1910, 276 pp.

Alfred Russel Wallace, Naturalist.

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Joseph Leidy, Anatomist. Biographical Memoir. Read by title at meeting of National Academy of Sciences, April 18–20, 1911. Presented to the Academy at the April Meeting, 1912. Biographical Memoirs National Acad. of Sciences, part of vol. 7, Feb., 1913, pp. 339–396.

Louis Pasteur, Bacteriologist. “The New Order of Sainthood.” The Churchman, vol. 107, no. 15 (whole no. 3560), April 12, 1913, pp. 474–475. Reprinted by Charles Scribner’s Sons, 12mo, October, 1913, 17 pp.

Eberhard Frass, Palæontologist. Science, N. S., vol. 41, no. 1059, April 16, 1915, pp. 571–572.

John Muir, Naturalist. Sierra Club Bulletin, vol. 10, no. 1, January, 1916, pp. 29–32.

Gustav Schwalbe, Anatomist. Science, N. S., vol. 44, no. 1125, July 21, 1916, p. 97.

Joel Asaph Allen, Zoologist.

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William Berryman Scott, Palæontologist. “The Work of Professor William Berryman Scott ’77.” The Princeton Alumni Weekly, vol. 17, no. 10, Dec. 5, 1917, pp. 225–226.

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Theodore Roosevelt, Explorer.

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Samuel Wendell Williston, Palæontologist.

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James Bryce, Author. Address on Viscount Bryce at the Memorial Service in the Cathedral of St. John the Divine, March 5, 1922.

John Burroughs, Naturalist. “The Racial Soul of John Burroughs.” Address at the Memorial Meeting of the American Academy of Arts and Letters, November 18, 1921.

Howard Crosby Butler, Archæologist. Address at the Memorial Meeting in Graduate College, Princeton University, October 21, 1922.