Summary

HS put the case of selection strikingly and clearly in his article [Anonymous, "A theory of population, deduced from the general law of animal fertility", Westminster Rev. 57 (1852): 468–501]. Of CD’s numerous private critics only HS has rendered the philosophy fairly: his argument is an hypothesis that explains groups of facts.

Summary

CD has caused a great change in HS’s views, in showing how a great proportion of adaptation should be explained by natural selection not direct adaptation to changing conditions. HS had remarked on the survival of the best individuals as a cause of improvement in man, but he "& every one" overlooked selection of spontaneous variation. Believes so many kinds of indirect evidence must add up to a conclusive demonstration of the doctrine.

Summary

Has prepared a historical sketch [of writers on origin of species] for foreign editions of Origin. It includes HS. He was too ill to provide it for the 1st ed.

Sorry Murray has not sent HS his copy of Origin, as he was instructed.

Huxley will put CD and E. A. Darwin down for HS’s gigantic [publishing] programme. Suggests Dr Drysdale be approached about it.

Summary

Remarks on ARW’s review of Samuel Haughton’s paper on bees’ cells

and Origin.

Agassiz’s strength as geologist and weakness in natural history theory.

Work problems.

His butterfly collection.

Problems with book on Malay journey.

Recommends Herbert Spencer and his Social statics.

Spencer’s "masterly" nebular hypothesis.

Summary

Has arranged with Baily the poulterer for pigeons for THH to exhibit at Royal Institution lecture.

E. A. Darwin will subscribe to H. Spencer’s book [First principles: a system of philosophy (1862)].

Summary

JDH lays hard treatment of John Scott to J. H. Balfour’s anti-Darwinism.

Summary

Hostile to Spencer’s application of natural selection to society.

JDH on J. E. Gray’s views on collecting.

JDH collecting Wedgwood ware.

Summary

Congratulations on the Copley Medal.

Summary

CD’s opinion of minor critics and commentators on Origin.

H. C. Watson’s notion of genera converging is dismissed.

Summary

Thanks for copy of HS’s First principles [? 2d ed. (1867)].

Comments on HS’s Principles of biology [1864, 1867].

Summary

Thanks for congratulations on award of Copley Medal by the Royal Society.

Discusses his long period of ill health.

Summary

Herbert Spencer, though not the scientific thinker he sees himself to be, was extremely important in conditioning the generation’s acceptance of evolution. Compares Spencer and Robert Chambers as teachers, rather than discoverers, of new ideas.

Summary

Replies to CD’s questions. Advice on use of term "morphology". Is much struck by CD’s idea that uniformity of an organ throughout a group implies functional inutility; the paradox of this position for classification.

Summary

Mentions Miss Buckley’s information on roosting in trees [see Variation 1: 181 n.].

Refers to Duke [of Argyll] and his Lamarckian view of change.

Roosting habits and behaviour of pigeons in Egypt.

Criticises Herbert Spencer’s works.

Has finished Elements; comments on Laurentian stages.

Remarks on his health

and forthcoming work [Variation].

Summary

Enthusiasm for Henry George’s Progress and poverty. Considers it to rank with Adam Smith’s work. His own work on the land question [Land nationalisation (1882)].

Summary

Herbert Spencer’s work disappointing – "all words & generalities".

Summary

Gradation in the eye.

Hooker intends to reply [to W. H. Harvey’s article in Gard. Chron. (1860): 145–6].

Discusses Aspicarpa with respect to correlation.

Comments on monstrous animals.

Discusses objections of Bronn and Asa Gray to natural selection. Cites parallel between natural selection and Newton’s concept of gravitation.

Mentions German experiments on spontaneous generation.

Summary

Comments on corrections [in Origin, 2d ed. (1860)], especially on use of Wallace’s name.

Discusses human evolution with respect to CL’s work. Cites expression as a source of evidence.

Andrew Murray’s criticisms of the Origin involving blind insects in caves [Edinburgh New Philos. J. n.s. 11 (1860): 141–51].

Humorously describes human ancestors.

Summary

Comments on CL’s reaction to the Origin. Mentions reactions of other scientists.

Discusses fertility of Aspicarpa.

Criticises Herbert Spencer’s views on population.