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.
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.
Invites WW for a short visit, JH's wife being ill. Thanks WW for paper on cause and effect. Clouds kept JH from photographing a recent solar eclipse.
[Same message as JH's letter of 1842-7-21, but sent to a second location.]
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