His fossil bones are unpacked and some are great treasures. He has some geology to do: R. I. Murchison has lent him a map and asked him to look at a part of the country he has been describing.

Their only protection against having Harriet Martineau as sister-in-law is that she works Erasmus too hard.

Dinner at the Hensleigh Wedgwoods’. They have agreed to go over his journal. Henry Holland thinks it not worth publishing alone because it goes over FitzRoy’s ground.

His impressions of Harriet Martineau: "She is overwhelmed with her own projects, her own thoughts and own abilities."

Has just given a paper [on "Sand tubes"] at Cambridge Philosophical Society and exhibited some specimens. It went well, with Whewell and Sedgwick taking an active part.

Herschel thinks 6000–odd years since the creation not nearly long enough to explain the separations from a single stock.

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 The Journal of researches will not be published until autumn [actually not until 1839].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.

His [first] railway journey was disappointing.

In his first letter after their engagement, CD reports on the happy reception of the news by his family. He hopes she will not find life with him solitary and dull after the lively social life of Maer.

Recounts his misadventures on the train journey back to London. Tells of a visit to the FitzRoys and a friendly letter from Lyell. Whether CD and Emma should live in central London or in the suburbs is a perplexing problem, much discussed by relatives and friends.

CD and Erasmus continue to search for a house in central London. They have tea with the Carlyles.

His search for a London house. He visits the Lyells, who give solemn advice to choose their London acquaintances carefully.

The house at 12 Upper Gower Street is theirs.

Has moved into the Gower Street house. Is pleased with it and its location.

Hopes to be able to finish his Glen Roy paper soon.

His dinner with the Carlyles. "He is the best worth listening to of any man" – but CD cannot get up much admiration for Mrs C, partly because of her Scots accent, which makes her difficult to understand.

Has been with the Lyells doing geology.

Is reading a biography of Sir W. Scott [J. G. Lockhart, Memoirs of the life of Sir Walter Scott (1837–8)]; also Mungo Park’s book [Travels (1799)].

Has hired a cook at fourteen guineas a year with tea and sugar.

Comments on recent visit to Maer. Explains that his notion of happiness as quietness and solitude derives from Beagle experience. Hopes Emma will humanise him. Comments on marriage planned for Tuesday.

Describes recent visit by Lyell and his wife. Talked geology for half an hour "with poor Mrs Lyell sitting by". "I want practice in ill-treating the female sex."

He has the wedding ring. Agrees to coming straight home after the wedding, if that is what she prefers.

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.