RWD had made up his mind to give up his objection to the Beagle voyage if JW did not take the same view. If Charles continues to want to go after further inquiry, will give him every assistance.

Has just arrived in Cambridge; his father has changed his mind. Asks to see JSH.

Spent preceding day with Henslow; much to be done. A friend, Alexander Charles Wood, has written to Capt. FitzRoy about CD. Peacock offered appointment as Beagle naturalist first to Leonard Jenyns, who almost accepted, as did Henslow himself. CD will talk to Capt. Francis Beaufort [Hydrographer] and FitzRoy. Thanks all his family.

Reports on his geological work in N. Wales since he and CD parted. Answers CD’s queries.

Wood has heard from FitzRoy, who seemed so much against CD’s going that CD and Henslow gave up. CD is in London; has seen FitzRoy, who is now ready to invite him. CD remains undecided. He likes FitzRoy. Gives details of prospective arrangements. They probably will be gone three years; "round the world" is not certain. Want of room is a serious objection.

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.

Orders clothing, books, and other supplies for the voyage, to be sent to him in London.

Received offer of post as naturalist in the Beagle in the same mail as WDF’s last letter. Outlines details of prospective voyage. Not certain, but thinks he probably will go.

Expresses pleasure that all is well with their friendship, which he prizes.

Discusses help he is receiving in his preparations for the voyage from William Yarrell and others. He has ordered a case of pistols, a rifle, and a good telescope with compass. It is settled that he will go.

Describes the coronation of William IV.

All is settled – nothing can now alter CD’s determination. Details of plan and arrangements. Beaufort believes CD’s collections should be presented to some public body. CD thinks a large central collection best for natural history. Is busy getting advice and information from Yarrell and Capt. P. P. King for the voyage.

Mentions letters from Peacock and Henslow; tells of offer of a position on surveying voyage, his initial refusal, and eventual acceptance. Describes FitzRoy and course of voyage.

Suggestions and information helpful to CD in preparation for Beagle voyage. David Brewster’s meteorological papers. Suggests an oyster-trawl for collecting marine animals. Recommends CD see R. E. Grant. For meteorological observations suggests F. W. Beechey’s Voyage to the Pacific [1831] and an interview with J. F. Daniell of King’s College.

Congratulates CD on Beagle appointment as an "opportunity … of studying all the natural sciences at once, after your own taste".

Pleasant three-day voyage to Plymouth has increased CD’s admiration for FitzRoy. Describes the Beagle as an excellent vessel, but the want of room is very bad. He likes the officers.

Plans to come to Shrewsbury.

Is pleased with cabin assignment on Beagle. Beagle will map the east side of Tierra del Fuego and Patagonia and set longitude of many places.

Plans to come to Cambridge to discuss Beagle voyage. Only difficulty is disposal of his collections. South Sea Islands now more probable.

Is glad of CD’s appointment and hopes it will be a source of happiness and honour.

Answers a query about books.

Suggests CD go to Geological Society, present himself, as AS’s friend, to William Lonsdale and study the Society’s collection.

Tells CD of his work in Wales; includes a diagram and explanations.

Ramsay’s death a grievous loss.

Rejoices in CD’s appointment and predicts he will rank with Candolle, Henslow, and Linnaeus.

Recounts their past pleasures and gives news of friends, who are scattering fast.

Reports on errands he has done for RF. Has discussed with Beaufort the question of his having right to dispose of his collection.

Describes his appointment, the Beagle, his companions, and the objectives of the voyage. Gives his schedule before departure.