Sends his book [On protoplasm (1874)], which defends CD’s theory.

Suggests why the lips are closed and the teeth clenched in the expression of determination: it originated as a means of protecting jaw-bone and teeth against a strong blow.

Comments on Tyndall’s [Presidential] Address at Belfast meeting [of BAAS] and praise of CD’s work there. Mentions criticism of Belfast clergy.

CL saw some crustacean footprints while in Ireland.

Hooker has told her of CD’s work on insectivorous plants. Offers plants, but her Dionaea plants are too small now.

Will prepare experiments with the fatty acids on digestion of gluten. Has found it is digested slowly, but entirely, with pepsin and hydrochloric acid.

Writes at length on the origins and meanings of particular head movements as used to express assent or disagreement, especially the sideways movements of the head as an expression of consideration or contemplation.

Also discusses space and colour perception.

Observations of effect of pepsin and hydrochloric acid on urea indicate that it is not digested [by Drosera].

Forwards a letter reporting on a blow-fly trapped by a leaf of Dionaea; decomposition of fly has also decomposed the leaf. JDH has written asking for a strong plant, and explaining the case [of surfeit].

Sends Pinguicula vulgaris leaves with seeds on them, together with his observations on proportion of leaves with insects on them.

Offers Utricularia montana and gives instructions for growing Drosera.

Wishes to visit CD at Down when she comes to London.

Observations on flotation of Utricularia vulgaris.

Has sent the Utricularia with the bladders that CD described.

In Variation CD does not mention a rare breed of Siamese cat, which she owns.

Asks for another photograph.

An anonymous letter praising the Origin.

He has physical peculiarities that support CD’s theories: e.g., ability to dilate nostrils like a rabbit and to spread out the toes of both feet.

Sends copy of one of his books.

Asks for drawing of CD’s right foot.

Thiselton-Dyer’s announcement of his inability to continue as JDH’s private secretary is a blow. He will now be doing original work. JDH is glad of that but the loss of his help is great.

Sends CD a statement of number of thousands of copies printed thus far [by Murray’s] of: Journal of researches (12), Origin (13), Descent (10), and Expression (9).

Describes the coral formations of Zanzibar and east coast of Africa.

Utricularia has broken into pieces and appears to be decaying.

Describes the coral formations of the island of Rodriguez [Indian Ocean].

CD should remove packing moss, and he will find bladders in foot-stalks of Utricularia DN sent.

Experimenting on insectivorous plants.

Implores CD to visit.

Thanks for photograph.