From:
Sir John Herschel
To:
George Biddell Airy
Date:
[5 April 1848]
Source of text:
RGO 6.9.204
Summary:
Willing to let GA choose the best objective lens [see GA's 1848-4-5]; then JH offers another possibility; all are ill at Collingwood.
Contributor:
John Herschel Project