Says Hooker does not want plant.

Obliged for account of change in quality of wool. "Some authors will not admit that climate has any perceptible action."

Hopes his health is re-established.

Agrees that naval expeditions to the Arctic are a waste of money. Believes Sir J. Barrow responsible. "Dr [Richard?] King is quite right in the advantage of Land Expeditions".

May go to Paris next summer about barnacles.

Unable to appreciate second volume of Alexander von Humboldt’s Cosmos [1848].

Recommends review by Sir John Herschel [Edinburgh Rev. 87 (1848): 170–229].

Recommends book by Mary Somerville [Physical geography (1848)].

Mentions article [on species] by M. E. Chevreul [Ann. Sci. Nat. (Bot.) 3d ser. 6 (1846): 142–214].

Has written to William Buckland, recommending EC for position.

Encloses note from William Buckland [1190], stating that no appointment of surveyor is to be made. Thinks further recommendation would be unwise, but will write to Sir Henry De la Beche and [Robert?] Hutton if EC wishes.

Will speak to Richard Owen, Henry De la Beche, and Robert Hutton concerning appointment for EC.

Leaving for sea-side on Saturday.

Declines to canvass for Richard King.

Water-cure has benefited health.

Discusses installation of watering system. Sent question to Gardeners’ Chronicle but, through EC’s kindness, superfluously.

Apologises for the trouble he has given EC. CD has given up the siphon plan and intends to make only an ordinary tank with a pump.

P. T. A. Talandier wants to translate Origin into French. Talandier gave Louis Blanc as a referee. Could Mrs Cresy, who knows Blanc, find out what he thinks of Talandier?

Thanks EC for help in finding French translator [for Origin].

Invites EC to visit. Wants to discuss education of his sons.

Daughter [Henrietta] has been very ill for 15 weeks.

Discusses letter from A. W. v. Hofmann concerning solution of iodine in water.

Obliged for note of 16th.

Failed to enclose letter from Hofmann.

Will be glad to read A. S. Taylor’s work [On poisons in relation to medical jurisprudence and medicine, 2d ed. (1859)].

Daughter Henrietta still weak.

Sends CD passages from A. S. Taylor’s book [On poisons in relation to medical jurisprudence and medicine, 2d ed. (1859)], citing smallest portions of poisons that are chemically detectable. "Drosera beats the chemists hollow."

Thanks for pamphlet by A. S. Taylor.

"… we have had a terrible week with my poor girl [Henrietta] on the point of death".

Discusses experiments involving placing solutions of ammonia and other substances on leaves of plants.

Discusses pamphlet by A. S. Taylor

and note by A. W. v. Hofmann concerning iodine solution.

Explains discrepancies in weights and measures caused by changes since 1836 in apothecaries’ measures.

EC has found that a discrepancy in A. W. von Hofmann’s experiments with iodine solutions resulted from an error in Hofmann’s use of decimals.

Reports S. P. Woodward’s opinion of the Origin: "a very sad book, it unsettles all one’s religious principles and the worst of it is so much of it is true".

Thanks for information about the weight of water.

Describes experiments on Drosera.