1. Agar, Wilfred E. 1943. A Contribution to the Theory of the Living Organism. Melbourne University Press
2. Allen, Garland E. 1983. “The Several Faces of Darwin: Materialism in Nineteenth and Twentieth Century Evolutionary Theory.” D.S. Bendall (ed.), Evolution from Molecules to Men. Cambridge University Press, pp. 81–102
3. Allen, Garland 1984. “Thomas Hunt Morgan: Materialism and Experimentalism in the Development of Modern Genetics.” Social Research 51: 709–738
4. Armstrong E.F. 1924. Chemistry in the Twentieth Century: An Account of the Achievement and Present State of Knowledge in Chemical Science. London: Benn
5. Bateson, William 1907. “Facts Limiting the Theory of Heredity.” Science 26: 649–660