Celebration planned for arrival of MH and IH. Son John is home from Addiscombe. JH's health. News of Hawkhurst. Regards to Mr. and Mrs. Greig.
Showing 21–40 of 58 items
Celebration planned for arrival of MH and IH. Son John is home from Addiscombe. JH's health. News of Hawkhurst. Regards to Mr. and Mrs. Greig.
JH's recommendations to Admiralty regarding experiments to be conducted by expedition to Teneriffe led by C. P. Smyth.
Comments on GS's ideas [see GS's 1856-6-27] about the nature of fluorescence. Asks for strong horseshoe magnets from R.S.L. to try to solve the problem of 'Mahomet's coffin.'
Thanks for the magnetic theory [see GS's 1856-7-9] and agrees it argues against JH's ideas about Mahomet's coffin. Describes some interesting magnetic experiments JH has seen.
Comments on a proposed grant to publish T. R. Robinson's Armagh observations.
A note indicating JH's willingness to say a few words.
Discusses AS's new book [Synopsis of the Classification of the British Palaeozoic Rocks...]. Wishes to have the completed work sent to him and sends congratulations on its completion. JH's health is improving.
Praises AS's new book [Synopsis of the Classification of the British Palaeozoic Rocks...]. All is well at Collingwood.
A number of options are proposed by JH to help GA solve his problem with the mercury level [see GA's 1856-4-14]; JH is feeling much better but fears he may 'never again be able to walk.'
A note to accompany the forwarding of a communication to GA.
Letter of introduction for the Drs. Hermann and Robert Schlagentweit, whose scientific interests parallel JF's.
Thanks for papers on diamagnetism and lecture on 'slaty cleavage.' Compares with phenomenon of 'ringing coins' in mint. Explains with examples conformity of JT's views with JH's own on geological stratification. Praises simplicity yet completeness of JT's work.
Clarifies letter on motion and structure modification of glaciers. JH thinks glacier ice unfavorable for exhibiting JT's phenomenon [see JT's 1856-7-30].
Thanks HS for response to and explains further JH's letter to John Tyndall regarding explanation of origin of geological slaty cleavage.
Success of C. P. Smyth's Teneriffe expedition pleases JH; anxious for declination of nebulae taken from high altitudes. Upset over G. J. Stoney's reproduction of JH's collimating telescope without giving him credit.
Sends regrets over TM's son not passing exam. Tries unsuccessfully to arrange a second testing. Fears war in Europe.
Sends copy of Admiralty Manual, which includes JH article on meteorology. Asks TM what to do with Bokkeveld meteorite specimen still in his possession.
Has no actinometers available [see GA's 1856-4-23], but tells GA where he can get one; rhapsodizes about the beauty of nature around him, and the silliness of a person.
Some more information on the use of the actinometer [see JH's 1856-4-24 & GA's 1856-6-3]; some news of JH's wife, Margaret.
[Reply to GA's [1856-4-6 or earlier] on Mohamet's coffin theory.] Congratulations on GA's son winning a scholarship. JH's health is better, but he cannot walk yet.