Summary

JDH’s comments on style of Origin MS leave CD confused.

CD advises on how to get Acacia to set seed.

Summary

His health has suddenly failed. He is leaving home for one week’s rest.

Has informed William Clowes that he will begin correcting on the 27th.

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

Too ill to examine proofs of JDH’s Flora Tasmaniae [The botany of the Antarctic voyage, pt III].

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

Returning from Moor Park. CD will take up proofs of JDH’s Flora Tasmaniae.

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

Charles Lyell has asked WE to pass his opinions on the MS of Origin to CD via Murray. WE is convinced of the value of CD’s researches but "to put forth the theory without the evidence", as in the MS, "would do grievous injustice to his views". The omission of these facts reduces both the philosophical and popular value of the work, by virtue of its dryness.

Supports Charles Lyell’s suggestion that CD should first publish his observations on pigeons with a theoretical outline, for "[e]very body is interested in pigeons". Such a work would generate wider interest and be better understood. A subsequent, larger book would then be approached with impartiality "not to say favour" by a wider public.