From:
George Biddell Airy
To:
Sir John Herschel
Date:
[27 February 1848]
Source of text:
RS:HS 1.197 (C: RGO 6.9.197)
Summary:
Georg Merz's practice regarding the sale of object-glasses. Is preparing a model of a transit circle.
Contributor:
John Herschel Project