From:
George Biddell Airy
To:
Sir John Herschel
Date:
[5 April 1848]
Source of text:
RS:HS 1.198 (C: RGO 6.9.201)
Summary:
Concerning object-glasses.
Contributor:
John Herschel Project
Concerning object-glasses.
Concerning the new meridional instrument. Is JH coming to town soon?
Family has been ill. Discusses possibilities for the formation of the sun and their effects on the law of area and the nebular hypothesis.
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.