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Sabine, Edward in correspondent 
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Herschel2331

From:
Edward Sabine
To:
Sir John Herschel
Date:
[8 February 1847]
Source of text:
RS:HS 15.202
Summary:

Encloses application for meteorological and magnetic observatories from governor of New Brunswick. May establish observations in all colonies for limited time. Puzzled over [John] Lefroy's results from Athabasca.

Contributor:
John Herschel Project

Herschel2332

From:
Sir John Herschel
To:
Edward Sabine
Date:
[20 February 1847]
Source of text:
RS:HS 15.203 (ACCS: RS:HS 25.7.4; C: RS:HS 22.303; RS MM 11.188)
Summary:

Has discovered a flaw in the theory of actinometer observations. Realizes that JH's actinometer observations at the Cape may be useless and that observations made at Government and East India observatories should be suspended.

Contributor:
John Herschel Project

Herschel2333

From:
Edward Sabine
To:
Sir John Herschel
Date:
[23 February 1847]
Source of text:
RS:HS 15.204
Summary:

Copies of 1847-2-20 letter will be sent to observatories utilizing actinometers. Earlier series will be replaced with accurate figures. Suggests method to measure temperature in actinometers.

Contributor:
John Herschel Project
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