Search: No in transcription-available 
John Herschel Project in contributor 
Herschel, John in addressee 
1840-1849::1842::05::13 in date 
Sorted by:

Showing 12 of 2 items

From:
C. A. von Steinheil
To:
Sir John Herschel
Date:
[13 May 1842]
Source of text:
RS:HS 17.4
Summary:

Suggests new method of gold plating the telescopic mirrors to prevent oxidation. Mentions having tried to galvanize the mirrors with 'Galvana plastik.'

Contributor:
John Herschel Project
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