No summary available.
No summary available.
No summary available.
Mostly news of JH's family; JH inquires as to the state of health of JL's mother.
JH expresses some concern about the accuracy of a wet bulb thermometer, as he is not clear about the nature of the experimental base for its use.
Promises to become more knowledgeable about [heat?] theory in order to be able to discuss it with JL. Cautions that the subject is an intricate one.
No summary available.
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.
Has received the books. Began with Karl Holtzmann's and finds the reasoning at fault. Comments on this. [Marked 'not sent.']
No summary available.
Comments on JL's improvements to planetary theory.
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.
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.
Advice as to best way to present JL's method of calculating the orbits of comets to R.A.S. If JL desires R.A.S. to undertake calculations, might be some difficulty.
Arrangements for JL's presentation to be made to the R.A.S.
Asks whether JL wishes to present method [see JH's 1847-12-4] at next R.A.S. meeting.
Cannot accept JL's kind invitation. Predicts a storm regarding the jury awards for the Great Exhibition.
No summary available.
Hopes JL will call application of JH's brother-in-law for position of Secretary of Bank of Asia to attention of a director, who is JL's relative.
No summary available.
JH is trying to arrange where to meet JL.