Wrote letter to clarify ideas, without intentions of publication. Discusses light and spectrum of Thomas Drummond's lamp.
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Wrote letter to clarify ideas, without intentions of publication. Discusses light and spectrum of Thomas Drummond's lamp.
Comments extensively on paper on limit of vaporization and its significance in helping to settle ideas on constitution of the atmosphere.
Declines an invitation of JH's, being 'engaged sixteenfold' that day. Invites JH to a party another day.
JH will be presented with the Gold Medal of the Astronomical Society of London.
Discusses nebulae. Begs JH not to overwork himself. Hopes to live long enough to see JH marry; advises JH that if he can marry a 'good-natured, handsome, and sensible young lady, pray think of it, and do not wait till you are old and cross.'
Pleased that JH supports CH's plans for her will. Worries about JH's safety at Puy de Dôme.
The first volume of Johann Pfaff's German translation of William Herschel's papers has been published; asks JH to inform her whether he wants a copy. Commenting on her boredom, CH laments that her 'sole employment consists in keeping myself in good humor and not be disagreeable to others.'
Describes her role in William Herschel's work as 'a mere tool which he had the trouble of sharpening and to adapt for the purpose he wanted it.' Sending to JH the first volume of Johann Pfaff's translation of William Herschel's papers in three weeks; believes that JH will be unhappy with it.
Discusses her will.
Studying the volcanoes of Auvergne; hopes to use his newly-created actinometer at the Puy de Dôme.
Sent to CH a copy of James South's second paper on double stars and a synoptic catalog of them. Calls CH one of the first discoverers of the 'comet of 1795.' Sent to Astronomical Society a report on 300 new double stars.
Sending a copy of Johann Pfaff's German translation of William Herschel's papers.
Hopes that JH will find a matter [the professorship at Cambridge] not 'incompatible with your [JH's] other avocations.'
Thanks JH for advice on a legal matter.
Asking for introductions to certain men of science in Paris. Revision of his views on his figure of the earth, and casting doubt on Edward Sabine's pendulum observations.
Sending his paper on the 'Figure of the Earth.' Description of work at Greenwich Observatory. Remarks on projected expedition to Falmouth and Ashbourne.
Instructions regarding the printing of his paper the 'Figure of the Earth' in the transactions. Details of the disappointing expedition to Falmouth.
Thanking him for his letters of introduction to Paris. Remarks on one of GA's papers; one of his calculations incorrect.
Information on a Mr. Atkinson. Remarks on dispersion of rays in glass.
Further regarding parcels of books sent to G. S. G. Santini of Padova. Details and comments on telescopes used for observations.