1946 "The naturalist in Leidy's time and today". Proceedings of the Academy of Natural Sciences of Philadelphia 98:271–276
1947 "Ecological factors in speciation". Evolution 1:263–288
1948 "The new Sanford Hall". Natural History 57:248–254
1950 The role of the antennae in the mating behavior of female Drosophila. Evolution 4:149–154
1951 Introduction and Conclusion. Pages 85,255–258 in The problem of land connections across the South Atlantic with special reference to the Mesozoic. Bulletin of the American Museum of Natural History 99:79–258
1951 with Dean Amadon, "A classification of recent birds". American Museum Novitates no. 1496
1953 with E G Linsley and R L Usinger. Methods and Principles of Systematica Zoology. McGraw-Hill, New York.
1954 "Changes in genetic environment and evolution". Pages 157–180 in Evolution as a Process (J Huxley, A C Hardy and E B Ford Eds) Allen and Unwin. London
1955 "Karl Jordan's contribution to current concepts in systematics and evolution". Transactions of the Royal Entomological Society of London 107:45–66
1956 with C B Rosen. "Geographic variation and hybridization in populations of Bahama snails (Cerion)". American Museum Novitates no 1806.
1957 "Species concepts and definitions". Pages 371–388 in The Species Problem (E. Mayr ed). AAAS, Washington DC.
1959 "The emergence of evolutionary novelties". Pages 349–380 in The Evolution of Life: Evolution after Darwin, vol 1 (S. Tax, ed) University of Chicago.
1959 "Darwin and the evolutionary theory in Biology". Pages 1–10 in Evolution and Anthropology: A Centennial Appraisal (B J Meggers, Ed) The Anthropological Society of Washington, Washington DC.
1959 "Agassiz, Darwin, and Evolution". Harvard Library Bulletin. 13:165–194
1961 "Cause and effect in biology: Kinds of causes, predictability, and teleology are viewed by a practicing biologist". Science 134:1501–1506
1962 "Accident or design: The paradox of evolution". Pages 1–14 in The Evolution of Living Organisms (G W Leeper, Ed) Melbourne University Press.
1964 Introduction, Bibliography and Subject Pages vii–xxviii, 491–513 in On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life, by Charles Darwin. A Facsimile of the First Edition. Harvard University Press.
1965 Comments. In Proceedings of the Boston Colloguium for the Philosophy of Science, 1962–1964. Boston Studies in the Philosophy of Science 2:151–156
1969 Discussion: Footnotes on the philosophy of biology. Philosophy of Science 36:197–202
1972 Continental drift and the history of the Australian bird fauna. Emu 72:26–28
1972 Geography and ecology as faunal determinants. Pages 549–561 in Proceedings XVth International Ornithological Congress (K H Voous, Ed) E J Brill, Leiden, The Netherlands.
1972 Lamarck revisited. Journal of the History of Biology. 5:55–94
1980 How I became a Darwinian, Pages 413–423 in The Evolutionary Synthesis (E Mayr and W Provine, Eds) Harvard University Press, Cambridge, Massachusetts.
1980 with W B Provine, Eds. The Evolutionary Synthesis. Harvard University Press.
1981 Evolutionary biology. Pages 147–162 in The Joys of Research (W. Shripshire Jr, Ed.) Smithsonian Institution Press.
1984 Evolution and ethics. Pages 35–46 in Darwin, Mars and Freud: Their influence on Moral Theory (A L Caplan and B Jennings, Eds.) Plenum Press, New York.
1985. Darwin's five theories of evolution. In D. Kohn, ed., The Darwinian Heritage, Princeton NJ: Princeton University Press, pp. 755–772.
1985. How biology differs from the physical sciences. In D. J. Depew and B H Weber, eds., Evolution at a Crossroads: The New Biology and the New Philosophy of Science, Cambridge MA: The MIT Press, pp. 43–63.
1988. The why and how of species. Biology and Philosophy 3:431–441
1992. The idea of teleology. Journal of the History of Ideas 53:117–135
1994. with W.J. Bock. Provisional classifications v. standard avian sequences: heuristics and communication in ornithology. Ibis 136:12–18