From:
George Biddell Airy
To:
Sir John Herschel
Date:
[13 May 1842]
Source of text:
TxU:H/M-0628.2 (C: RGO 6.368.654)
Summary:
Sends JH the current position of Gamma Virginis.
Contributor:
John Herschel Project
Sends JH the current position of Gamma Virginis.
Suggests new method of gold plating the telescopic mirrors to prevent oxidation. Mentions having tried to galvanize the mirrors with 'Galvana plastik.'