Search: 1860-1869::1866::09 in date 
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Herschel6683

From:
John Henry Dallmeyer
To:
Sir John Herschel
Date:
[24 September 1866]
Source of text:
RS:HS 6.2
Summary:

Outlining phenomena in the refraction of light. Has been experimenting with wide angle lenses for cameras and gives some of their defects. Would like JH's opinion on how to get rid of the 'secondary focus.'

Contributor:
John Herschel Project

Herschel6684

From:
Sir John Herschel
To:
John Henry Dallmeyer
Date:
[30 September 1866]
Source of text:
RS:HS 24.167
Summary:

Provides a physical explanation for a white patch in the center of JD's photograph.

Contributor:
John Herschel Project

Herschel7193

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[1 September 1866]
Source of text:
RS:HS 24.165
Summary:

Comments on Charles Babbage's entry into Cambridge; strange stories from old letters.

Contributor:
John Herschel Project

Herschel7194

From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[3 September 1866]
Source of text:
RS:HS 6.387
Summary:

Returns his letter. Recommends a biographical dictionary by Charles Hale. Paradoxes connected with theology are endless.

Contributor:
John Herschel Project

Herschel7195

From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[27 September 1866]
Source of text:
RS:HS 6.388
Summary:

Tells a story of the translation of Arabic by Englishman who turned out to be Richard Baily, the brother of Francis. Where is it set forth that a leech is a barometer? What is the truth about the relations between Charles Babbage and James South? Has he a catalogue of Ulugh Beg?

Contributor:
John Herschel Project

Herschel9632

From:
Sir John Herschel
To:
Julia Margaret Cameron
Date:
[25 September 1866]
Source of text:
unknown
Summary:

Thanks JC for sending a batch of JC's photographs; praises them. Does not know the author of 'Man & His Dwelling' or of 'Ecce Homo.' Dislikes the latter.

Contributor:
John Herschel Project

JHC1147

From:
Sir Joseph Dalton Hooker
To:
Dr Thomas Anderson
Date:
19 September 1866
Source of text:
JDH/2/3/1 f.92, The Royal Botanic Gardens, Kew
Summary:

No summary available.

Contributor:
Hooker Project
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