From:
Sir John Herschel
To:
Warren de La Rue
Date:
[27 August 1859]
Source of text:
RS:HS 23.272
Summary:
Requests information about specula for telescopes, especially silvered glass ones.
Contributor:
John Herschel Project
Showing 1–5 of 5 items
Requests information about specula for telescopes, especially silvered glass ones.
Discusses a telescope ordered for C. A. von Steinheil of Munich and the design of WR's glass polishing machine. Mentions visit by Thomas Maclear. Kew Telescope produces photos of sunspots.
Further questions about the physical optics of telescopes [see JH's 1859-8-27].
Offers to show JH his observatory and the polishing apparatus he uses. Comments on various telescope makers, especially Andrew Ross.
Sending R. C. Carrington's certificate for JH's signature.