Informs JH that the B.A.A.S. has place him on a committee to conduct experiments by capture balloon on the atmosphere.
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Informs JH that the B.A.A.S. has place him on a committee to conduct experiments by capture balloon on the atmosphere.
Informs JH that the B.A.A.S. has placed him on a committee to supervise the translation and publication of foreign scientific memoirs.
On his last passage down the Red Sea the Captain informed TN of the singular alteration of his chronometers. Comments on this and would like JH's views. Magnetic station at Aden has never been set up and the instruments are still at Bombay. Examined the ancient canal while at Suez. Will be pleased to assist JH in any way.
A proposal to complete the calculating machine has been made by Charles Babbage, and AH wants JH's opinion of it.
Does JH plan to publish 'Treatise on Light' in separate form?
JH, William Whewell, George Peacock, Humphrey Lloyd, and Edward Sabine are appointed by the B.A.A.S. to study systems of simultaneous magnetical and meteorological observations. They will be granted £89.
Goes into considerable detail in providing information about the business organization of the Munich lens makers, and the high quality of their lenses. Urges the benefits of achromatic lenses, and sends MC some specimens of JH's photography.
Discusses time intervals for [magnetic] observation. Sorry a change was ever contemplated. Asks that his opinion be sent to [Humphrey] Lloyd and that ES make the final decision on how to proceed.
Sorry [F. W.] Bessel's health is 'so indifferent.' Glad JH is coming to [B.A.A.S. meeting].
Met Friedrich Bessel at the Manchester B.A.A.S. meeting; invited him to Collingwood, where he expects Bessel in a few days. Enclosed with the letter a specimen of a new photographic process called 'Chrysotype.' Marvels at traveling from Hawkhurst to Manchester round trip (420 miles) in under 23 hours!
Thanks JH for a letter of introduction.
Letter of introduction for some friends of JH, to FA in Bonn.
About further travel plans, and people FB is meeting as he travels in Britain.
Thank you note after FB visited Collingwood.
Warm thanks for JH's kind hospitality; some comments about Prussian Order of Merit.
Account of the eclipse seen at Pavia.
Detailed arrangements for FB's visit [see JH's 1842-6].
Comments on expected honor from Prussian government and on British rules against officially accepting it.
Informs FB on how to visit Woolwich Arsenal and Dock Yard.
Hopes to arrange a meeting with WW at the invitation of a Mr. Hope. Discusses JH's recent photographic works and sends some photographs of improved quality.