About the health of Richarda Airy and that of JH.
Showing 1–20 of 24 items
About the health of Richarda Airy and that of JH.
Is sending on G. G. Stokes instructions about polarization; several expeditions have left for more southerly locations to observe the upcoming solar eclipse.
About a grant to support [H. J. R.] Petersen while he carries out the reduction of terrestrial magnetic observations.
Would support the application for a grant [see JH's 1870-5-12], but would like to see some changes in the way calculations are made.
Responds that R. A. Proctor's theory [see GA's 1870-2-5] is possible, and explains why.
Responds to proposals of JH [?], and comments on the problems of the Royal Mint charges for coinage, especially coinage for foreign authorities.
Refers to several items of correspondence, and then comments on the calculation of Gaussian earth-constants to a higher power than has been done to date.
Is looking for an observer for a newly-mounted telescope in India for the December 1871 eclipse. Would JH's son John be available?
Does not know what commitment of John Herschel (JH's son) would be for December 1871, but encourages GA to communicate with him [see GA's 1871-3-13].
About a title change for the Astronomer Royal's chief assistant.
Some comments about the proposed title change [see GA's 1870-7-31].
Is preparing a catalogue of all double star observations, and is having much difficulty with the observations of J. H. Mädler.
Has JH seen R. A. Proctor's theory regarding the Milky Way?
Has he heard about the resignations of the Assistants at the Paris Observatory? Further regarding the present situation at the Paris Observatory.
Is sending extract of a letter [included] received from R. L. J. Ellery, Melbourne[deals with observations of Eta Argus].
Regarding Alexander Herschel's paper on acoustical oscillations recently sent to G. A. Erman.
Regarding GA's proposed visit to Hawkhurst. Is losing the services of his first assistant. Book on magnetism almost printed. Is revising his article on sound. Is trying out a water telescope.
Is sending G. G. Stokes's instructions about polarization. Observation parties are off to Oran, Gibraltar and Cadiz.
Is sending two copies of his book on magnetism [Treatise on Magnetism (London, 1870)].
Thanking him for copies of books. People at Collingwood are gazing at the eclipse. Concerning the astatic needle.