BIBLIOGRAPHY 



This list of books has been made longer than in most of 

 the volumes of the series, and for three reasons. (1) The 

 scientific study of organic evolution is still very young. There 

 are many uncertainties, there is rapid progress along diverse 

 lines, there are not a few moot and controversial points. We 

 wish to recognize this by giving a representative set of refer- 

 ences, indicative of various schools of evolutionists. (2) We 

 have met, personally and in correspondence, a large number 

 of able-minded workers — face to face with evolution problems, 

 e.g. as breeders or as gardeners, as medical practitioners or 

 travellers — who had thought long, and sometimes carefully, 

 over particular sets of facts, but remained entirely unaware 

 that these had been threshed out, not once or twice, but 

 many times over. Not that this refuses value to any new 

 observation or thought, but it suggests that some literary 

 research may be reasonably expected from those who have 

 reached what they feel sure is an upsetting conclusion. We 

 hope that this little book and this list will facilitate that 

 research. (3) The problem of Becoming is not particular to 

 any one science. It is social as well as cosmic and organic. 

 Therefore in our list we have not forgotten that Darwinism 

 touches the Humanities. 



* Those marked with one asterisk may be the best books 

 for a student to begin with. But the best beginning is always 

 where the personal tendril fixes. 



** Those marked with two asterisks record important post- 

 Darwinian investigations. 



It is too difficult to aSix marks to suggestive thoughts — 

 shall we say of Bergson, for instance — which may turn out to 

 be of much more value than many concrete studies. The 

 idea of confining "research" to the objective is grotesque. 



*** Those marked with three asterisks are "classics." 



Bailey, L. H.— "Plant-breeding." 3rd Edition, 1904. [A 

 valuable and practical study of variation and selection 

 in cultivated plants.] See also "The Survival of the 

 Unlike." 1896. 



Baldwin, J. Mark. — "Development and Evolution." 1902. 

 [Expounds the author's theory of the indirect evolu- 



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