Search: Helmholtz, Hermann in author 
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Tyndall1890

From:
Hermann Helmholtz
To:
John Tyndall
Date:
5.1.61
Source of text:
MS JT/1/H/40, RI
Summary:

No summary available.

Contributor:
Tyndall Project

Tyndall1893

From:
Hermann Helmholtz
To:
John Tyndall
Date:
10 Mai | 1862
Source of text:
MS JT/1/H/41, RI
Summary:

No summary available.

Contributor:
Tyndall Project
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