Search: Roberts, Richard in author 
Herschel, John in correspondent 
1840-1849::1846::10 in date 
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From:
Richard Roberts
To:
Sir John Herschel
Date:
[5 October 1846]
Source of text:
RS:HS 14.496
Summary:

Thanks JH for suggestions concerning optics. Will soon build a model telescope. Asks a series of questions concerning the construction of telescopes.

Contributor:
John Herschel Project