Has been considering a reply to JL's letter of the 25th. Outlines two courses to take and prefers the latter himself. Communicate with Richard Sheepshanks regarding the viva voce.
Showing 21–40 of 57 items
Has been considering a reply to JL's letter of the 25th. Outlines two courses to take and prefers the latter himself. Communicate with Richard Sheepshanks regarding the viva voce.
Has got his paper on shooting stars. Comments on JL's theories of meteors. Pleased to hear a favorable account of Montague Lubbock.
Does not possess the Transactions of the Astronomical Society, which contains JL's paper. Had to limit the scope of his article so could not deal with the point mentioned in JL's letter. Comments on P. S. Laplace's formula.
About the barometric formula for the measurement of heights.
Has received the books. Began with Karl Holtzmann's and finds the reasoning at fault. Comments on this. [Marked 'not sent.']
Asks JL to take on the preparations for the magnetic observations, including the instructing of ships' personnel.
R.S.L. business about an observatory at the North Cape in Sweden.
Comments on a paper on the calotype by W. H. F. Talbot, adding some experiences of his own on the subject.
Comments on Louis Daguerre's work, and on the question of a North Cape observatory.
Comments on balloon ascent report, photographic paper made with vegetable colors, and the need to provide a polarizing crystal to J. B. Biot.
Comments on JL's improvements to planetary theory.
Arrangements for JL's presentation to be made to the R.A.S.
Is sending a letter of support for a neighbor for the position of commander of constabulary about to be established in Kent.
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.
Has just done photographic experiments using bromine paper, and is very pleased with them. JH notes in a postscript that he had just received a letter from W. H. Fox Talbot stating that Fox Talbot had just discovered bromine paper as well.
Believes that R.S.L.'s request for £3000 grant to establish permanent magnetic and meteorological observatory is too hasty. Urges caution. Points out potential problems.
Explains JH's objections to JL's shadow-extinction hypothesis of meteors. Believes that several sorts of meteors—magnetoelectric, stony, vaporous, etc.—exist.
Is unable to come to London for the Standards Commission meeting and thus will also not be able to come to the dinner party. Encloses some recent photographs.
JH comments on JL's 'memoir on the heat of vapours,' indicating JH's dissatisfaction with the experimental basis (the experimental work of J. L. Gay-Lussac) for the conclusions. JH offers improvements in the construction and operation of the ice calorimeter.
JH has arranged for U. J. J. Leverrier, J. C. Adams, and Wilhelm Struve to visit JH together at Collingwood. JH is writing to invite JL to join them.