From:
George Biddell Airy
To:
Sir John Herschel
Date:
[13 August 1840]
Source of text:
RGO 6.693.94
Summary:
Asks for JH's help in trying to determine the likely cost of making magnetic observations at Greenwich.
Contributor:
John Herschel Project
Asks for JH's help in trying to determine the likely cost of making magnetic observations at Greenwich.
Provides information [see GA's 1840-8-13] based on equipping the Breslau Observatory; also comments on lawyers, meteor showers, and photography.
Thanks JH for his help [see JH's 1840-8-14], and tells JH about a visit to Greenwich by Charles Wheatstone.
The Royal Observatory wants to make magnetic observations at Greenwich, and it appears will need to make some building alterations. Estimates are required immediately by the Admiralty/Treasury, and GA seeks JH's assistance.
Regarding equipment at Royal Observatory. Comparison of planets.