Will be showing some experiments in the laboratory next Monday to G. B. Airy, François Marcet, and a few others; JH would be welcome.
Will be showing some experiments in the laboratory next Monday to G. B. Airy, François Marcet, and a few others; JH would be welcome.
No summary available.
William Mann returns to England still in poor health. Expresses concern over running of Edinburgh Observatory by C. P. Symth. Regrets poor data from Cape Observatory on Comet of 1843. Observed Comet Gambert. Situation with Caffres hostile.
The first volume of JM's Logic has been printed and the printers require what is ready of the second volume. In Book Three would like comments from JH regarding the difference with P. S. Laplace's theories.
Sending a letter for a Benjamin Peirce, one of the professors at the University of Cambridge (Mass.). EE has just assumed the presidency of this university.
[Written as a family letter.] JH has corrected the first proof sheet of his Cape Results. Reports that Biela's Comet has been found to be a double comet.
Returns the account of Lord Rosse's telescope with many thanks. Weather has not been good for observations, but gives some observations on the comets.
Continues JH's defense of Laplace's writings on probabilities [see JH's 1845-12-22].
A note to accompany a working out in convenient form an example of Laplace's probability ideas. [Enclosure not found.]
Planning to edit a volume of hexameter verse translations. Wishes to include JH's translation of Friedrich Schiller's 'The Walk.'
Has been pursuing his magnetic experiments with crystals and will be publishing a memoir on them. Comments on these experiment. Is there a difference in the mass of the earth at the poles?
Describes conditions and instruments at Edinburgh Observatory. Observatory assistant Alexander Wallace works on reduction of Thomas Henderson's transit observations.
Sending a German translation of an unfinished work of HO. Regrets that so few people can read the Danish language. Is grateful for JH's papers.
JH's second letter has convinced him. Has now written a new conclusion to the chapter showing the principles of P. S. Laplace in a new light. Does not think Laplace's example is a fair type. Has already rewritten the chapter on the Doctrine of Chances.
Reports that Biela's Comet split into two comets; JH has observed it several times. 30-40 pages of JH's Cape Results have been printed.
Does not possess enough knowledge of F. W. Bessel's writing to compose more than a brief obituary on him. Would like RS to help [A. B.] Orlebar of the Bombay Observatory by providing a corresponding observation of the occultation of alpha Virginis on 19 January.
Looks to reap fruits of observations. AQ's treatise on atmospheric waves has not arrived. R.S.L. has refused to 'receive and retain works communicated through them.'
Compliments of JH and his wife.
Believes Beta Ursae Minoris to be a slow variable star. Remarks on diminution of the star's brightness between 1840 and 1841.
Receives report on poor state of Paramatta Observatory. Encloses letter from Thomas Brisbane, who believes James Dunlop should be removed from his post of authority there.