Lock was the author of
Recent Progress in the Study of Variation, Heredity, and Evolution, 1906. It went through five editions, with the fourth edition (1916) substantially revised by
Leonard Doncaster published after Lock's death. In 1908,
Alfred Russel Wallace wrote supportively about the textbook: In conclusion, I would suggest to those of my readers who are interested in the great questions associated with the name of Darwin, but who have not had the means of studying the facts either in the field or the library, that in order to obtain some real comprehension of the issue involved in the controversy now going on they should read at least one book on each side. The first I would recommend is a volume by Mr. R. H. Lock on “Variation, Heredity and Evolution” (1906) as the only recent book giving an account of the whole subject from the point of view of the Mendelians and Mutationists.
A. W. F. Edwards suggested
Ronald Fisher was inspired by the book, writing: it brought together (to quote from its chapter headings) evolution, the theory of natural selection, biometry, the theory of mutation, Mendelism, cytology, and eugenics, all in a single volume. Nowhere else could the young Fisher have found such a guide to the subjects that fascinated him over and above his student work for the Mathematical Tripos. ==Works==