Thanks for seeds and plants.

News of Francis and Horace Darwin.

Asks WTT-D to identify a leaf.

Though correspondence has never ebbed so low, CD is constantly in his thoughts.

Observations on cheetahs used as domesticated hunting animals.

Finds geographical barriers sometimes separate species, but also finds species that remain separate where there are no barriers to migration.

Colour "individuates" isolated animal species.

Plains and alpine animal distribution show altitude not strictly analogous to latitude.

Impact of timber cutting on climate has led to extinction of crocodiles.

Will discuss coal formation in letter to Edward Forbes.

CD often asked whether isolated mountains in southern latitudes had closely allied representatives of Arctic and north temperate plants; JDH has found a representative barberry.

Making for Darjeeling via Calcutta.

JDH may put CD’s name down for £200 for the proposed fund.

Does JDH have a plant of Porlieria hygrometrica he could lend to CD?

Movement and sensitivity of flower parts; relationship to cross-fertilisation.

Federico Delpino on mechanical movements of flower parts of Maranta. CD’s observations on Maranta, and his eagerness to compare cases of movement and irritability in plants.

Thanks for plants and seeds; requests for more to test Sachs’s notion on "bloom".

GB’s note has given him more pleasure than his election to the French Academy.

Heliotropic responses in aerial roots and tendrils.

Sends seeds received from Fritz Müller.

Has been reading WTT-D’s lecture ["Plant-distribution as a field for geographical research", Proc. R. Geogr. Soc. 22: 412–45].

Heliotropism in roots.

Francis Darwin’s work on "bloom" and its relation to stomata.

Movements of flower-stalks of Oxalis.

Wants some plants for sleep-movement observations. Has almost finished experimental work and must start sorting his notes.

Wants Impatiens seeds, in order to observe movements of cotyledons.

CD hopes his book [Movement in plants] will be worth the effort WTT-D has put into getting plants for him; fears he has achieved little.

Has met FitzRoy, who has now offered him the post of naturalist on board the Beagle. Other details about the voyage arrangements – mess, CD’s status, route, books.

Movements in Oxalis.

Heliotropic movements. Is giving up experiments until the spring.

Wants to borrow Duchartre’s Éléments de botanique [1867].

Thanks for book [Duchartre, Éléments de botanique].

Thanks for second edition of Duchartre.