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Herschel, John in addressee 
1840-1849::1840::04::30 in date 
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Herschel2808

From:
Edward Sabine
To:
Sir John Herschel
Date:
[30 April 1840]
Source of text:
RS:HS 15.88
Summary:

Writes of a magnetic survey of a portion of India and the inaccuracy of the equipment used in magnetic observations at sea.

Contributor:
John Herschel Project

Herschel1351

From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[30 April 1840]
Source of text:
RS:HS 17.301
Summary:

Waxes lyrical about nature, and comments on a new 'positive' paper JH has sent. Refers to JH's move to Hawkhurst.

Contributor:
John Herschel Project
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