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Tyndall, John in addressee 
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From:
Sir John Herschel
To:
John Tyndall
Date:
[27 July 1856]
Source of text:
RS:HS 17.383b (C: 23.176; C: RI 499)
Summary:

Thanks for papers on diamagnetism and lecture on 'slaty cleavage.' Compares with phenomenon of 'ringing coins' in mint. Explains with examples conformity of JT's views with JH's own on geological stratification. Praises simplicity yet completeness of JT's work.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
John Tyndall
Date:
[31 July 1856]
Source of text:
RS:HS 23.175 (C: RI 502)
Summary:

Clarifies letter on motion and structure modification of glaciers. JH thinks glacier ice unfavorable for exhibiting JT's phenomenon [see JT's 1856-7-30].

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
John Tyndall
Date:
[17 March 1857]
Source of text:
RS:HS 17.386
Summary:

Thanks for lecture on glacier cleavage. Wonders how 'regelation' occurs when two masses of ice at 32° are placed in contact.

Contributor:
John Herschel Project
Document type
Transcription available