From:
James David Forbes
To:
Sir John Herschel
Date:
[4 March 1847]
Source of text:
St. Andrews LB IV, 214-16 (C: RS:HS 7.309)
Summary:
Sympathizes with JH's feelings of regret over actinometer readings. Has procured a new thermometer and carried out experiments toward correction of actinometers.
Contributor:
John Herschel Project