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1840-1849::1848::10::12 in date 
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From:
Augusta Ada King
To:
Sir John Herschel
Date:
12 October [1848]
Source of text:
RS:HS 19.284
Summary:

Quotes passage from A. E. P. Gasparin comparing JH's actinometer to other such instruments. Seeks JH's opinion of Adolphe Quetelet's hypothesis of heat. Question on photographic chemicals and 'calorific rays.'

Contributor:
John Herschel Project
From:
William King
To:
Sir John Herschel
Date:
[12 October 1848]
Source of text:
RS:HS 19.285
Summary:

Returns JH's diaries with observations of moon's effect on cloud cover. Quotes citation of these observations to appear in WK's new paper.

Contributor:
John Herschel Project