Footnotes

[0a] This is the date on the title-page. The preface is dated October 15, 1886, and the first copy was issued in November of the same year. All the dates are taken from the Bibliography by Mr. H. Festing Jones prefixed to the “Extracts” in the New Quarterly Review (1909).

[0b] I.e. after p. 285: it bears no number of its own!

[0c] The distinction was merely implicit in his published writings, but has been printed since his death from his “Notebooks,” New Quarterly Review, April, 1908. I had developed this thesis, without knowing of Butler’s explicit anticipation in an article then in the press: “Mechanism and Life,” Contemporary Review, May, 1908.

[0d] The term has recently been revived by Prof. Hubrecht and by myself (Contemporary Review, November 1908).

[0e] See Fortnightly Review, February 1908, and Contemporary Review, September and November 1909. Since these publications the hypnosis seems to have somewhat weakened.

[0f] A “hormone” is a chemical substance which, formed in one part of the body, alters the reactions of another part, normally for the good of the organism.

[0g] Mr. H. Festing Jones first directed my attention to these passages and their bearing on the Mutation Theory.

[0i] He says in a note, “This general type of reaction was described and illustrated in a different connection by Pfluger in ‘Pfluger’s Archiv. f.d. ges. Physiologie,’ Bd. XV.” The essay bears the significant title “Die teleologische Mechanik der lebendigen Natur,” and is a very remarkable one, as coming from an official physiologist in 1877, when the chemico-physical school was nearly at its zenith.

[0j] “Contributions to the Study of the Lower Animals” (1904), “Modifiability in Behaviour” and “Method of Regulability in Behaviour and in other Fields,” in Journ. Experimental Zoology, vol. ii. (1905).