1. Sturtevant, A.H. (1965) History of Genetics, Harper & Row; in chapter 21, Sturtevant reviews the claims that the three rediscoverers were really so independent, whilst several papers by Alain Corcos and Floyd Monaghan suggest that only Correns had really collected data that were really comparable to those obtained by Mendel. See, Corcos, A. and Monaghan, F. (1985) Role of de Vries in the recovery of Mendel's work. J. Hered. 76, 187–190; (1986) Tschermmak: a non-discoverer of Mendelism I: an historical note. J. Hered. 77, 468–469; and (1987) Tscheremak: a non-discoverer of Mendelism II: a critique. J. Hered. 78, 2–10. These various positions have been admirably summarized in Peter Bowler (1989) The Mendelian Revolution. The Emergence of Hereditarian Concepts in Modern Science and Society, Johns Hopkins University Press, especially chapter 1.
2. Mendel's Principles of Heredity: A Defense;Bateson,1902
3. Letter from William Bateson to his wife, Beatrice, 3 October 1902, quoted in Paul, D. and Kimmelman, B. (1988) Mendel in America: theory and practice – 1900–1919. In Rainger, R. et al. (1988) The American Development of Biology, p. 283, University of Pennsylvania Press.
4. Thomas Hunt Morgan, the Man and His Science;Allen,1978
5. Gregor Mendel, the First Geneticist;Orel,1996