From:
George Biddell Airy
To:
Sir John Herschel
Date:
[17 April 1849]
Source of text:
RS:HS 1.216 (C: RGO 6.231.180
Summary:
Returning papers of Yvon Villarceau and an abstract of them, together with comments on them.
Contributor:
John Herschel Project