Sends a number of questions (to put to his father), mainly concerned with transmission of diseases, between Europeans and natives, "people packed together", etc.

Is investigating how to get Government support [for Zoology].

His books grow in size. Hopes to bring out work on volcanic islands and coral formations in the autumn or winter. The Journal of researches will not be published until autumn [actually not until 1839]. Whewell and Lyell flatter him about it. Has given up all society.

Describes his routine for a typical day – writing Coral reefs, studying German.

FitzRoy’s "Deluge Chapter" [Narrative 2, ch. 28] will amuse her.

His opinion of Carlyle’s Critical and miscellaneous essays [1839].

Had a pleasant week in London and is now enjoying Cambridge, where he is busy with work and social engagements.

Writes with great enthusiasm of his prospective trip to "the Tropics" [Canary Islands]. Henslow will cram him in geology. He is working regularly at Spanish.