Forwards William Burnett's paper on medicine and medical statistics for the Manual. It exceeds the desired length but JH may prune it as he thinks fit.
Sending a paper in which he recommends JH's Prelim. Discourse; it is addressed chiefly to mechanics.
Received his letter just as he was about to lecture. Regarding the Institution, there are five or six telescopes in use and G. B. Airy is to deliver lectures, so JH's work may be useful.
Sending notices of several variable stars he has observed recently. Observed Encke's comet twice. Newly discovered variable stars will be discussed in his forthcoming notes to the Ecliptic charts. Sends a small pamphlet on the expected comet.
Has finished his paper for JH's Admiralty Manual and it only requires copying. Can reduce it if necessary.
Sending his notes for JH's Admiralty Manual. Would have been earlier but he dislocated his left shoulder and had to have the services of an amanuensis.
Has been working for a long time on the supposed influence of magnetism on chemical action. Outlines an experiment he has used to show whether magnetism affects chemical action; would like his comments.
Encloses a copy of his own paper from the P.M. Has not found time to do the experiments suggested by JH, but hopes to shortly. Is revising some papers on the physical powers of the universe for re-publication.
Is grateful for JH's request to add his name as a subscriber to his book. Sends a volume entitled the Poetry of Science for JH's acceptance.
Is pleased he approves of his style. Regarding the experiments on the germination of seeds. His own son is progressing satisfactorily.
Sends JH a mathematical theorem.
On the deviation from the perpendicular of falling bodies.
JH's letter grieves him, but he will convey his decision to the Trustees. Has just heard of the death of the Archbishop [of Canterbury, William Howley].
Has written a letter to Mrs. James Maclaren and enclosed three orders of admission to the British Museum.
Sending a letter on the Orthography of the African language from a friend of his, the Rev. Henry Venn. Would be grateful if JH could help him.
Does JH intend visiting the R.S.L. on Thursday and probably the R.S.L. Club dinner on that day? If so, will he breakfast with him?
Encloses a letter from W. J. Burchell, the African traveller, showing the variability of Argus. Has added a 10 foot telescope to the instruments at the Observatory.
Presumes they are at Adam Sedgwick's. Supposes they will come to Broxbourne by the 11 o'clock train from Norwich and will arrange for it to be met. Expects a new theory of the earth's crust from JH. Mrs. Jeff[re]y is seriously ill, which delays the Jeff[re]ys at Haileybury.
Louisa and Johnny [Herschel] are well. Called at India House to see Mr. Hooper. Gives requirements of the various examinations and thinks Willy [Herschel] would do well to stay with [Charles] Pritchard, while Johnny can remain and study at home.
Col. Ouseley had a son at Addiscombe. Has ascertained the relative value of the various branches of study in the final examination. Gives table of values. Hears that military drawing puzzles some. Children are well. If Johnny [Herschel] draws as well as Louisa [Herschel] at 14 he will do well.