1. 1894 Materials for the study of variation. Macmillan and Co. 1913 Problems of genetics. New Haven, Yale University Press.
2. and 1902 Report I to the Evolution Committee of the Royal Society, London; Harrison.
3. and 1905 Experimental studies in the physiology of heredity: Poultry. Report II to the Evolution Committee of the Royal-Society, London; Harrison.
4. 1906 Inheritance in poultry. Carnegie Institute of Washington, p. 72.