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Herschel1607

From:
Sir John Herschel
To:
Edward Sabine
Date:
[28 April 1870]
Source of text:
Cambridge University Library 7656/H727 (C: RS:HS 24.307)
Summary:

Comments on the effect of great temperature variations on the speculum of a telescope.

Contributor:
John Herschel Project

Herschel3448

From:
Sir John Herschel
To:
Edward Sabine
Date:
[28 April 1870]
Source of text:
RS MC.9.63 (C: RS:HS 24.308)
Summary:

ES has been forwarded letter explaining why 'great telescope' at Melbourne will not work and suggesting construction corrections, on which JH, who believes such 'a priori condemnation' unjustified, comments herein.

Contributor:
John Herschel Project
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