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Helmholtz, Hermann in correspondent 
1860-1869::1864 in date 
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Tyndall2060

From:
John Tyndall
To:
Hermann Helmholtz
Date:
Undated
Source of text:
MS JT/1/T/503, RI
Summary:

No summary available.

Contributor:
Tyndall Project

Tyndall2064

From:
John Tyndall
To:
Hermann Helmholtz
Date:
16th. January 1864
Source of text:
MS JT/1/T/481, RI
Summary:

No summary available.

Contributor:
Tyndall Project
Text Online

Faraday4440

From:
Michael Faraday
To:
Hermann Helmholtz
Date:
7 April 1864
Source of text:
Berlin-Brandenburgischen Akademie der Wissenschaften, Archiv
Summary:

No summary available.

Contributor:
Faraday Project
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