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Tyndall, John in correspondent 
1860-1869::1869::06 in date 
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Herschel3337

From:
John Tyndall
To:
Sir John Herschel
Date:
27?] June [1869
Source of text:
RS:HS 17.414 (C: RI 566)
Summary:

Encloses reference to one of JH's letters to JT that has already been printed.

Contributor:
John Herschel Project

Herschel3442

From:
John Tyndall
To:
Sir John Herschel
Date:
[1 June 1869]
Source of text:
RS:HS 17.407b (C: RI 565)
Summary:

In response to JH's comments on JT's explanation of comets says faintness of head and nucleus does not indicate non-existence; eye may not see all. Experiments with polarized light produce 'gorgeous' 'residual blue.'

Contributor:
John Herschel Project
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