Thanks HS for his 'highly interesting' paper on the 'Universal Postulate,' which will appear in the Westminster Review.

Thanks for copy of HS’s Principles of psychology [1855].

Thanks for HS’s Essays: [scientific, political, and speculative, vol. 1 (1858)]. Admires his general argument for the development theory.

CD is preparing an abstract on change of species. He treats subject as a naturalist, not from a general point of view. Otherwise he might have quoted HS’s argument to great advantage.

CD particularly liked articles on music and style. Expression is a favourite topic with CD. Agrees all expression is biological.

Thanks HS for sending [see HS's 1859-1-10] HS's Essays and his 'Recent Astronomy and the Nebular Hypothesis.' Regarding the latter, points out a geometrical error, expresses reservations about HS's and Auguste Comte's views of the nebular hypothesis, and argues against HS's theory of sunspot structure. Agrees with HS's idea that some nebulae may be nearer than commonly thought.

[Responding to HS's 1859-12-31,] JH presents additional problems in the nebular hypothesis, critiques in detail HS's views of the distribution of cometary orbits, and argues against HS's theory of sunspot formation.

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.

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.

In response to HS's query [1864-3-1] about the influence of Auguste Comte on English scientists, JH refers HS to JH's 1845 B.A.A.S. presidential address. States that calculating the motion of a projectile through a resisting medium is extremely difficult.

No summary available.

Will subscribe to HS's work as requested [see HS's 1860-3-5], but dissents 'from very large portions' of HS's views. Especially objects to HS's adoption of the 'Shibboleth of the Hegel & Schelling School of German Philosophy—"the Absolute."' [This letter misdated; correct date: 1860-3-17.]

No summary available.

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

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

Expresses his "unbounded admiration" for HS’s article on Martineau ["Mr Martineau on evolution", Contemp. Rev. 20 (1872): 141–54]

and his article on sociology [Contemp. Rev. 19 (1872): 701–18]. CD never believed in the reigning influence of great men on the world’s progress but could not have given his reasons. "Now every one with eyes to see and ears to hear . . . ought to bow their knee to you, as I for one do."

Thanks for copy of HS’s Descriptive sociology [1873].

Discusses adaptations in flowers and their heritability.

Mentions advertisements for HS’s book [? Study of sociology (1873)].

Thought HS would have profited by principle that a character appearing late in life is inherited at same age.

No summary available.

CD cannot remember whether he was on the committee of the Jamaica affair [for prosecution of Governor Eyre in 1866] but he subscribed £10.

It is curious and amusing how positivists hate all men of science, possibly because their prophet [Comte] made laughable and gigantic blunders in predicting the course of science.

No summary available.

No summary available.

Although he agrees with the object of HS’s league he will not join until he has seen how it works.