From:
William Hopkins
To:
Sir John Herschel
Date:
[7 February 1857]
Source of text:
RS:HS 9.478
Summary:
Has been absent from home, which accounts for his belated reply. Comments on JH's difficulties in relation to W. H. Hopkins's memoir on the external temperature of the earth. JH's son is progressing well.
Contributor:
John Herschel Project