Search: letter in document-type 
1860-1869::1862 in date 
Tyndall, John in correspondent 
John Herschel Project in contributor 
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From:
Sir John Herschel
To:
John Tyndall
Date:
[12 April 1862]
Source of text:
RS:HS 17.390b (C: 23.367; C: RI 516-17)
Summary:

Remarks on JT's papers on radiant heat and related role of moisture. Will send requested sample of rock salt. Explains difficulties using it and hopes JT will have better success, perhaps even repeating JH's experiments.

Contributor:
John Herschel Project
From:
John Tyndall
To:
Sir John Herschel
Date:
[15 April 1862]
Source of text:
RS:HS 17.391 (C: RI 518)
Summary:

Finds JH's approval incredibly gratifying. Thanks for gift of rock salt. Is sending unscientific book; trusts JH's interests are broad enough to appreciate it.

Contributor:
John Herschel Project