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From:
James David Forbes
To:
Sir John Herschel
Date:
[3 February 1847]
Source of text:
St. Andrews LB IV, 193-5 (C: RS:HS 7.308)
Summary:

Comments, after delays due to busyness, on JH's queries on the calibration of actinometers and gives results of experiments.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[3 February 1847]
Source of text:
RS:HS 22.300
Summary:

Sends what JH has written on F. W. Bessel.

Contributor:
John Herschel Project