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Herschel6568

From:
Sir John Herschel
To:
William Crookes
Date:
[30 August 1859]
Source of text:
RS:HS 5.311 (C: RS:HS 23.270)
Summary:

Sends spectra obtained by Ioduret of potassium. Gives details of his latest photographic experiments.

Contributor:
John Herschel Project

Herschel4428

From:
Warren de La Rue
To:
Sir John Herschel
Date:
[30 August 1859]
Source of text:
Harvard: Houghton AAH 67m-67 (48)
Summary:

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.

Contributor:
John Herschel Project
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