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Schumacher, Christian Andreas in correspondent 
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From:
Christian Andreas Schumacher
To:
Sir John Herschel
Date:
[23 July 1852]
Source of text:
RS:HS 17.179
Summary:

Mentions his stay at Pulkowa Observatory in 1844 and 1845. Refers to [Alexander von] Humboldt's Kosmos. Discusses a function of prisms in telescopes.

Contributor:
John Herschel Project