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Brachet, Achille in addressee 
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From:
Sir John Herschel
To:
Achille Brachet
Date:
[15 November 1855]
Source of text:
RS:HS 4.212 & 23.161
Summary:

Answer to his queries on telescopes and rays of light. Is sorry he rejects Joseph Fraunhofer's fixed lenses.

Contributor:
John Herschel Project
Text Online
From:
Michael Faraday
To:
Achille Brachet
Date:
31 January 1857
Source of text:
Staatsbibliothek Preussischer Kulturbesitz Dokumentensammlung Darmstaedter F 1 e 1831 <>. Autograph I/1478/23
Summary:

No summary available.

Contributor:
Faraday Project