Search: Herschel, John in correspondent 
Biot, Jean Baptiste in correspondent 
1810-1819 in date 
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From:
Jean Baptiste Biot
To:
Sir John Herschel
Date:
[2 May 1819]
Source of text:
RS:HS 4.84
Summary:

Has been very busy; otherwise he would have answered his friendly letter earlier. Observations on tourmaline. Double refraction.

Contributor:
John Herschel Project
From:
Jean Baptiste Biot
To:
Sir John Herschel
Date:
[21 October 1819]
Source of text:
RS:HS 4.85
Summary:

Queries regarding the refraction of light in crystals.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Jean Baptiste Biot
Date:
[10 December 1819]
Source of text:
RS:HS 4.86 (C: 20.78)
Summary:

Answers to JB's queries on the refraction of light through crystals, and Newton's rings.

Contributor:
John Herschel Project