Major Essays in Dictionaries and Encyclopedias

• Evolutionary Biology in Encyclopedia of Evolutionary
  Biology. Editor-in-chief, Richard Kliman.
• Biology, in New Dictionary for the History of
  Ideas. Editor-in-chief, Maryanne Horowitz.
  Charles Scribner’s Sons, 2004, pp. 750-758. (pdf)
• Evolution, in New Dictionary for the History of Ideas.
  Editor-in-chief, Maryanne Horowitz. Charles
  Scribner’s Sons, 2004, pp. 220-226. (pdf)
• [I]sadore Michael Lerner, New Dictionary of
  Scientific Biography, Noretta Koertge ed.
  Volume 4. Charles Scribner’s Sons, 2007,
  pp. 277-284.
• George Ledyard Stebbins, New Dictionary of
  Scientific Biography, Noretta Koertge ed.
  Volume 4. Charles Scribner’s Sons, 2007,
  pp. 513-516.
• Cyril Dean Darlington (1903-1981), New Dictionary
  of National Biography. Oxford University Press.
  Consultant and Associate Editor: Pietro Corsi, Editor: Colin Matthew

Other Biographical Essays

• Essays on Edgar Anderson, Jens Clausen and G.
  Ledyard Stebbins in Evolution: the First Four Billion
  Years, Michael Ruse and Joseph Travis, eds. Cambridge
  University Press, 2009.
• Essay on Theodosius Dobzhansky in International
  Encyclopedia of Social Sciences, William Darity Jr.
  ed, Macmillan, 2007.
• Essays on Thomas Hunt Morgan, R. A. Fisher, and
  Theodosius Dobzhansky in Oxford Companion to the
  History of Modern Science, John L. Heilbron ed.,
  Oxford University Press, 2003.
• Essay on G. Ledyard Stebbins in American National
  Biography, on-line edition, Oxford University Press, 2001.
• Essays on: Edgar Anderson (1897-1969), J. T. Burrill
  (1839-1916), Douglas H. Campbell (1859-1953), Willis
  Lynn Jepson (1867-1946), Oakes Ames (1874-1950),
  Joseph Charles Arthur (1850-1942), Jens Clausen (1891-
  1969), John Merle Coulter (1851-1928), Lewis Stadler
  (1896-1954), Charles Sprague Sargent (1841-1927), Karl
  Sax (1892-1973), William Albert Setchell (1864-1943),
  George Harrison Shull (1874-1954), and Sewall Wright,
  in American National Biography, John A. Garraty and
  Mark C. Carnes, eds. 24 volumes. Oxford University
  Press, 1997.

Tributes

• The American Professor and the French Baroness. A
  Tribute to Harry Paul, Outstanding Emeritus Professor
  at the University of Florida, Department of History. (pdf)

Essays  Especially for Students

• Essay, History of Evolution. Biology for Students.
  Macmillan Library Reference. Editor Richard Robinson. 2001.
• Essays on Charles Darwin (1809-1882), Joseph Hooker
  (1817-1911) and Nikolai Ivanovich Vavilov, in Plant Sciences
  for Students. Macmillan Library Reference. Editor Richard Robinson. 2001.
• Essay, Evolution of Plants, History of; Encyclopedia.com
  http://www.encyclopedia.com/doc/1G2-3408000130.html, 2001.

For Popular Science

• Desperately Seeking Quinine, Today’s Chemist, January 2000: 69-72.
• Country Report: Papua New Guinea, The Pacific Circle Bulletin 1 (1998): 10-18.