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."
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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."
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".
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.
Says Hooker does not want plant.
Obliged for the Theophrastus. Will return it.
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.
Discusses installation of watering system. Sent question to Gardeners’ Chronicle but, through EC’s kindness, superfluously.
Thanks for information about the weight of water.
Describes experiments on Drosera.
Thanks EC for help in finding French translator [for Origin].
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.
Has not himself experimented with delicacy of tests but sends several illustrations of what other authorities have done. Reference to James Marsh’s test for arsenic and that of Ashley Paston Price for iodine.
Discusses letter from A. W. v. Hofmann concerning solution of iodine in water.
Is enclosing Alfred Swaine Taylor’s book On poisons (1848). Reports on his own experiment with the starch test in dissolving iodine in different measures of water.
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.
CD may be interested in a reference to a method of detecting 1/195000 of a grain of sodium chloride.
Also, on Drosera, suggests it would be interesting to try substances such as gun-cotton, in which nitrogen is in very different states from a salt of ammonia.