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Text Online
From:
Michael Faraday
To:
Jean-Baptiste-André Dumas
Date:
15 November 1855
Source of text:
AS MS
Summary:

No summary available.

Contributor:
Faraday Project
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