The "man-essay" [Descent] is "very interesting but very difficult".

Cat-like behaviour in dogs.

Thanks for information from Louis Agassiz;

wishes he could feel he deserves what Alexander Agassiz says of him.

Believes AG’s cases of incipient dimorphism are due to mere variability. Has found examples in Nolana and Amsinckia; believes such variation is the basis for the development of dimorphism. Was unaware of variations in Phlox.

Sensitivity of Drosera and Dionaea.

Sends questions on expressions of Laura Bridgman.

Has finished Descent. Believes that parts, like that on moral sense, will aggravate AG.

Working on an essay on expression.

CD’s sons, George and Francis, are to visit the U. S. Can AG supply any letters of introduction?

Questions AG on earthworm activity in North America and would welcome information from northern Canada if AG has a correspondent there.

Thanks for AG’s book, How plants behave [see 8363].

Is correcting proofs of Expression.

Spiralling of tendrils.

Has worked hard on Drosera.

Is interested in tracing the "nerves" of Dionaea which follow the vascular bundles. Finds he can paralyse half of the leaf by pricking it at a certain point.

Wishes AG to carry out two experiments on D. filiformis.

Has received AG’s Dubuque address [Am. J. Sci. 3d ser. 4 (1872): 282–98].

Has received, through AG, a letter on Dionaea [from W. M. Canby] which has greatly interested him. CD asks AG to question his correspondent on whether it catches large or small insects.

Mary Treat will observe Drosera filiformis.

Astonished by Agassiz’s argument; has sent AG’s memorandum to Nature [see 8786].

Is working on cross- and self-fertilising plants and has temporarily stopped work on Drosera.

CD is deeply pleased by AG’s article on him in Nature [10 (1874): 79–81].

Is preparing book on "Drosera and Co." for the printers. Reports observations on digestion in Drosera and Pinguicula.

Profoundly grateful for AG’s article in Nature; he is especially pleased by what AG says about teleology.

Remarks on his work on Pinguicula. Notes its digestive power; it absorbs nutritious matter from leaves and seeds as well as insects.

Thanks for Sarracenia, which is as wonderful as any orchid.

Asks AG to observe Pinguicula.

Has read AG’s semi-theological review [Nation 18 (1874): 348–51] with interest

and has obtained the book [C. Hodge, What is Darwinism? (1874)].

Read AG’s article [see 9753] on longevity and duration of varieties with great interest.

Death of Mrs Hooker.

Hopes Insectivorous plants will be out in the spring.

Has received but not yet read Insectivorous plants.

AG’s notices of Insectivorous plants [Nation 22 (1876): 12–14, 30–2]

and Climbing plants [2d ed., Am. J. Sci. 3d ser. 11 (1876): 69–74].

Use of flower peduncles for support in Maurandia. Transition from branches to tendrils.

Would like sheets of Cross and self-fertilisation if it is not already out.

Thanks for sheets of new book. Intends to talk about it at a scientific social club meeting.

Is amused to read CD’s criticisms of his own style, as in the U. S. it is spoken of as being as faultless as his temper. Corrects a reference.

Dimorphism and cleistogamy in Hottonia.

AG wants new, unambiguous term for what is now referred to as "dimorphism", "dioecio-dimorphism", or "heterostyly"; proposes "heterogone".

Sends an excerpt from Bulletin of Torrey Botanical Club 2 (June 1871) on Hottonia inflata.

Discusses some dimorphic plants.

Sends specimens of Rhamnus but his few specimens of Leucosmia are very poor.