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Tyndall, John in correspondent 
1860-1869::1867 in date 
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Herschel3178

From:
John Tyndall
To:
Sir John Herschel
Date:
[30 October 1867]
Source of text:
RS:HS 17.401 (C: RI 541)
Summary:

Asks whether Michael Faraday's work with glass resulted in improved manufacturing or if rather its main scientific value was in discovery of diamagnetism.

Contributor:
John Herschel Project

Herschel3412

From:
Sir John Herschel
To:
John Tyndall
Date:
[3 November 1867]
Source of text:
RS:HS 24.210
Summary:

Believes Michael Faraday's boro-silicate of lead has not been used for telescopes, but JH and others have tried using it for other optical purposes. Describes method for producing veinless flint glass.

Contributor:
John Herschel Project
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