CD agrees cultivated plants may begin to vary after some time and then may vary suddenly, but cautions JDH on lack of evidence. His explanation is that small variations are ignored until they accumulate.
Questions about stripes on mules.
CD suggests George Bentham or Joseph Prestwich for Royal Medal.
Will send first six chapters [of Origin] for the press. Sends data on size of MS and book. His "beau ideal" for type and size is Lyell’s Manual [of geology] 1st ed.
Important to his health to get the work printed quickly. Must leave home soon to stay for months at a water-cure establishment.
Asks printer to send a proof-sheet a day until he gets well ahead.
Has FS observed the slaves of Formica sanguinea foraging outside the nest.
Reports his observations on the habits of slave-making ants (Formica sanguinea).
No summary available.
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.
Discusses WED’s plans for the summer.
JDH’s comments on style of Origin MS leave CD confused.
CD advises on how to get Acacia to set seed.
CD is convinced that the suggestions [for the Origin?] of both Lyell and Whitwell Elwyn are impracticable.
Will send first six chapters of MS next week. Has taken such pains with it that he hopes corrections will not be heavy.
Sends first six chapters [of Origin] for the press. Asks JM to urge printer to keep well ahead of CD so as not to waste time. This is important for his health’s sake.
Darwin delighted at Asa Gray's reaction to Darwin and Wallace 1858.
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.
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.
Too ill to examine proofs of JDH’s Flora Tasmaniae [The botany of the Antarctic voyage, pt III].
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.
Returning from Moor Park. CD will take up proofs of JDH’s Flora Tasmaniae.
CD’s diagram [for chapter on "Divergence of character", Origin] is indispensable.
Finds he will have to make many corrections, his text is so obscure.
A week of hydropathy at Moor Park has done him a world of good.
THH should understand that CD’s hypothesis [natural selection] has as many flaws and holes as sound parts. The question is whether CD’s rag of a hypothesis is worth anything. A poor rag is better than nothing to carry one’s fruit to market.