Offers HO a small requiem, which JH's family sung at the beginning of the astronomical year at the memorial of the 40-foot reflector.
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Offers HO a small requiem, which JH's family sung at the beginning of the astronomical year at the memorial of the 40-foot reflector.
Has received JL's memoir on the tides. JH would like to amalgamate certain portions with a memoir from William Whewell. JH adds some comments on photographic experiments he has made.
Declines the invitation to the annual Hunterian Oration and dinner. Now that JH is moving even farther away from London, he feels he must reluctantly resign as a member of the Trustees of the Hunterian Collection.
Appeals to JR on behalf of Andries Stockenström, whose dismissal from Cape Colony created grief. Stockenström is ready to resign that office if he can do so in a manner that permits him to continue his career in government.
JH is concerned about MH's health, especially her sore teeth; JH sends along some letters, and reports that all are well at Slough.
Is in communication, as requested, with Mr. Train and Thomas McBean about their candidacy for teaching at the Government Schools at the Cape of Good Hope.
About buying horses, and closing the deal to buy Collingwood. JH refers to an enclosure about anti-slavery.
Attests to the honorable personal character of Captain Andries Stockenström. Wishes the circumstances of his dismissal could be remedied.
Has written a letter to Lord John Russell outlining the case of Andries Stockenström. Does not wish to become involved in Cape politics or the affairs of the Anti-Slavery Society much as he appreciates their importance.
Tactfully explains to TM why he cannot recommend him for a teaching position in the Government Schools at the Cape of Good Hope.
Will attend R.A.S council and stay with FB; question of expulsion of three members.
[Letter begins 11 Dec. 1839] Wrote to John Russell and Charles Grant in support of school system [at Cape of Good Hope]. [Letter continues 6 Jan. 1840:] JH sent to Colonial office testimonials for four applicants [for schoolmaster] approved by Russell. Notes devastating effect of dismissal on Andries Stockenström. Took liberty to inform Russell of JH's and GN's views on harshness of this dismissal. [Letter continues 12 Jan.:] Russell will appoint four schoolmasters picked by JH. [P.S. 11 Feb.:] JH is moving to Collingwood. Russell indicates sympathy for Stockenström. JH hopes this means new assignment for Stockenström.
Reports on a simple mode of obtaining from a common Argand oil lamp a greatly increased quantity of light.
Both William Whewell and George Peacock agree to using the magnetometers, forms, books, etc, but do not agree to the provision of actinometers [for the equipping of terrestrial magnetism stations??].
Alerts RS to the fact that there is an 'underhand sale' of the prints of [H. W.] Pickersgill's portrait of JH going on, as JH's cousin bought one.
Waited until after 14 Feb. to submit JH's paper on photography ['On the Chemical Action of the Rays of the Solar Spectrum...,' R.S.P.T. (1840), 1-59]. Will send WT a copy.
JH concerned not so much that a few copies of the print of JH's portrait may have been sold, but that the plate itself may have been stolen and sold. Seems relieved to know that the plate was left with the printer, not the engraver. Asks RS to make an inquiry with the printer.
Outlines theory behind and method for preparing thermographic paper, which allows observers to determine 'what share each ray of the spectrum bears in producing the observed total effects.'
Tells WT about JH developing the thermographic paper which is susceptible to 'calorific' and 'chemical' rays of light.
No summary available.