From:
Sir John Herschel
To:
[Humphrey Lloyd?]
Date:
[25 February 1840]
Source of text:
DMC 695A.885.27
Summary:
Both William Whewell and George Peacock agree to using the magnetometers, forms, books, etc, but do not agree to the provision of actinometers [for the equipping of terrestrial magnetism stations??].
Contributor:
John Herschel Project