Summary

Thinks GM’s Pelargonium is a case of true correlated characters. Feels secondary sexual characters are only accidental correlations; does not see the same necessity for close simultaneous development of certain characters as GM does.

Will forward a copy of his Orchids.

Summary

Thanks CD for sending Orchids.

Reports observations by his uncle relating to the successful breeding of a male mule with a horse.

Summary

Discusses cases of assumed correlation, e.g., facial hair and generative organs, sexual characters in castrated oxen. Finds it difficult to see how correlation of functions which would be useless separately can be accumulated gradually through natural selection.

Summary

Glad RF approves of book [Origin].

Impossible in many cases to conjecture how structures acquired.

Comments on degeneration of civilised man.

Summary

Forwards a communication from A. Fonblanque for possible publication in Natural History Review. [See "Notice of mule breeding", Nat. Hist. Rev. n.s. 5 (1865): 147–8.]

Summary

He had no idea that the double function of an excretory passage had played a part in the history of religion.

Summary

Thanks GM for a curious lily.

Recommends some papers on coal.

Gives his opinion on the importance of forming theories if one is to be a good and original observer.

Summary

Quarterly Review piece written by Bishop Wilberforce with aid of Owen.

Other reviews mentioned.

Health.

Summary

Thanks AG for Cypripedium and Mitchella.

Plans to investigate pollination of Cypripedium.

Has finished Linum paper [Collected papers 2: 93–105].

Would welcome facts on "bud-variations".

Hears that Cinchona is dimorphic.

Summary

Believes GM’s human bones from Gibraltar must be of very doubtful age. Lyell agrees, but feels any skull found should be forwarded to George Busk or Hugh Falconer.

Suggests GM look carefully for shells in the drift.

Summary

Returns CD’s pamphlets.

Wishes CD would work out further what keeps certain species immutable for great periods.

Feels himself a convert, but cannot go all lengths with CD.

Feels some reviewers distort CD’s argument.

Summary

Was reminded of CD by his new book [Descent] in a shop;

reports having come on train as far as Bromley in previous summer, but found no means of travelling the seven miles to Down. Might try again.

Summary

Thanks CD for his letter about GM’s review of the Origin.

Sends instances of correlative organisation and functions which he finds difficult to believe could have accumulated by gradual modifications.

[Letter erroneously dated 1862 by GM.]

Summary

Mentions George Maw’s "good review" of Origin [Zoologist 19 (1861): 7577–611].

Relates remark by J. S. Mill concerning soundness of logic and method of Origin.

Is at work [on Orchids and Variation].

Summary

Distribution of varieties and subspecies.

George Maw’s review of the Origin [Zoologist 19 (1861): 7577–611].