Describes the tests JH made on a small glass prism of not very high quality, which JH has left at the Royal Institution.
Describes the tests JH made on a small glass prism of not very high quality, which JH has left at the Royal Institution.
Sending the first volume of his Ephemerides for the Astronomical Society, also for Francis Baily and W. H. Smyth. Comments on various aspects of the Ephemerides. Thanks for JH's excellent work on Light.
Needs more money to continue work on Charles Babbage's calculating machine.
Spoke yesterday to His Royal Highness [Duke of Sussex], who would be flattered to be elected. Friday will be last chance until November.
[Edward] Sabine's letter confirmed WR's membership in R.S.L. Feel he was ill-used by Dollar Institution. Apologizes for trouble he caused JH.
Invitation to dine with him. Regarding Richard Taylor the printer.
Declines offer by Archbishop of Canterbury to join provisional committee to govern newly proposed King's College.
Describes a terrible hail-storm that broke all the windows in her house. Will send her Astronomical Society Medal for JH to store alongside his and William Herschel's medals.
No summary available.
Letter of thanks for a copy of JH's thoughts on light.
Charles Babbage has every reason to be grateful for FB's letter to the Times. Richard Sheepshanks and the observations. The ring of Saturn. Has been observing lots of Wilhelm Struve's double stars.
Invites JH, his mother, and cousin to visit EW anytime.
Expressing the thanks of the Académie for JH's article on Light.
Giving news of the intentions of her son (Charles Babbage) and his experiences on his travels.
Has found some errors in the sheets of computations HK sent. Lists these. Comments on astronomical work of [William] Richardson and on the reading of 'The repeal of the Longitude Acts Bill.'
There is no truth in SL's statement to James Ivory regarding work on the figure of the earth belonging exclusively to JH. Has written to Ivory stating the facts of the misunderstanding.
Microscopes installed successfully. Describes observation of second satellite of Jupiter transiting the disk of the planet and how it seemed to linger at the planet's edge.
Sends WS JH's 'Light' published in the Encyclopaedia Metropolitana. Mentions recalibration of his magnitude measurements of small stars near other small ones. Comments on results in WS's paper concerning Saturn's ring. Confirms sighting of 'well defined, equable, planetary disk.'
Lists contents of a letter sent on 1828-7-6. JH's Light and third catalogue of double stars sent. Details of nebulae included.
Discusses atmospheric refraction, Francis Bacon's distinction between argument and testimony, and the manner in which the Board of Longitude was dissolved.