From:
Charles Pritchard
To:
Sir John Herschel
Date:
[10 November 1864]
Source of text:
RS:HS 14.93
Summary:
Compares JH's equation for lens curvature with that of C. F. Gauss.
Contributor:
John Herschel Project
Compares JH's equation for lens curvature with that of C. F. Gauss.