Summary

JDH finds style of CD’s MS obscure.

CD wary of JDH’s starting point on variability: it is not inherent, it does not lead necessarily to divergence, and it must be distinguished from inheritance.

Asa Gray has misread CD’s views on pre-glacial migrations and botched the subject.

Summary

Approves specimen sheet [of Origin]. Sorry book will be so long. Has now written half of last chapter; it is as long as his estimate of the entire chapter. Now thinks it will run to 6000 or 7000 words. Will do his utmost to improve his style. Anxious to publish soon; he knows of two men already writing on the subject, starting from his Linnean Society paper ["On the tendency of species to form varieties", Collected papers 2: 3–19]. Will send a diagram for the book.

Summary

Sends copy of Origin for comments.

Does not feel AG’s views of migration after the last glaciation explain distribution in U. S. as well as CD’s view of migration prior to glaciation.

Summary

High, detailed praise for introductory essay to Flora Tasmaniae [reprinted as On the flora of Australia (1859)]. CD expects it to convert botanists from doctrine of immutable creation.

Summary

CD has written to Asa Gray criticising J. D. Dana’s arguments for a warm period subsequent to glacial period.

Remembers it is Alphonse de Candolle who states that many species are not true species.

Did Huxley write the excellent review in the Times?

Summary

Encloses letter concerning Edward Blyth’s application for a position with the China expedition.

Mentions reviews of the Origin. Guesses that Huxley wrote the Times review.

Alludes to discussion of relations between fossil and modern types [in Principles of geology 3: 144].

Discusses destruction of tropical forms in the glacial period.

Mentions letter from Dana concerning Dana’s illness.

Summary

CD not convinced that naturalisation of European plants abroad is strictly dependent on creation by agriculture of disturbed ground.

More than half through his chapter on geographical distribution.

Summary

CD favours occurrence of reversions, although lack of experiments forces one to vague opinions. Reversions oppose only the inheritance not the occurrence of variation. Discusses relation of reversion, direct influence of conditions, and selection.

Summary

Returns JDH’s proofs. He is so involved in Origin he cannot judge force of JDH’s arguments. Some detailed comments.

Haldeman’s old paper [see 2470] clever, but does not have natural selection. Explaining adaptation has always seemed turning point of theory of natural selection.

Summary

Relieved by Wallace’s letter.

At work on introductory essay to Flora Tasmaniae.

European plants naturalised in Australia are almost all adapted to invading disturbed ground.

JDH supports Asa Gray against Alphonse de Candolle as foreign member of Royal Society.

Summary

All but last two chapters of Origin proofs corrected.

Praise for JDH’s introductory essay [to Flora Tasmaniae].

Very ill and sick of work.

Summary

Will read JDH’s printers’ slips on variation.

CD has been so ill, he wonders whether he will get his book done, though so nearly completed.

Summary

Thanks for AG’s Japan memoir [Mem. Am. Acad. Arts & Sci. 6 (1857–9): 377–452]. Does not think AG’s arguments for a warm post-glacial period are sufficient, but will not be sorry to be proved wrong.

Believes natural selection explains many classes of facts which repeated creation does not.

Writes of some responses to the Origin.