1. 1905.Reports to the Evolution Committee, II. p. 68.
2. 1905.R. H. Lock.Studies in Plant Breeding in the Tropics, p. 403.
3. 1907.Jost.Plant Physiology. Translation by R. J. Harvey Gibson, p. 375.
4. 1909a.Bateson.Mendel’s Principles of Heredity, p. 19.
5. 1909b.Bateson.Mendel’s Principles of Heredity. Translation of “Experiments in Plant Hybridization,” Gregor Mendel, p. 337.