Sends paper [on ancient Swiss lake-habitations, Nat. Hist. Rev. n.s. 2 (1862): 26–51] for CD’s opinion.

Grateful for CD’s approval of "Lake-habitations".

Will visit CD on Saturday.

Sir George Clerk to be new President of the Zoological Society.

Hopes CD will come to lunch on Saturday. The Busks and J. D. Hooker are with JL.

JL is going on a geological excursion with Joseph Prestwich and John Evans.

Thanks for Orchids.

"The big book [Variation] will no doubt go on again now."

JL is writing on Somme implements ["Evidence of antiquity of man", Nat. Hist. Rev. n.s. 2 (1862): 244–69].

JL’s Swiss tour with Tyndall and Huxley.

Lake-habitations.

CD’s health is bad.

Would like to visit CD on Friday.

Hopes to visit tomorrow if CD is up to it.

Thinks Bates’s paper on mimetic butterflies ["Contributions to an insect fauna of the Amazon valley", Trans. Linn. Soc. Lond. 23 (1862): 495–566], is very good; would appreciate an article on it from CD ["On mimetic butterflies", Nat. Hist. Rev. (1863): 219–24; Collected papers 2: 87–92].

Thanks CD for agreeing to review Bates’s paper for Natural History Review.