Search: Herschel, John in addressee 
Herschel, John in correspondent 
Pictet, Marc August in correspondent 
1820-1829 in date 
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From:
Marc August Pictet
To:
Sir John Herschel
Date:
[19 November 1822]
Source of text:
RS:HS 13.398
Summary:

Thanks JH for the books sent, and describes the work at Geneva in making geodesic measurements.

Contributor:
John Herschel Project
From:
Marc August Pictet
To:
Sir John Herschel
Date:
[29 November 1823]
Source of text:
RS:HS 13.399
Summary:

Letter of introduction for O. F. Mossotti.

Contributor:
John Herschel Project
From:
Marc August Pictet
To:
Sir John Herschel
Date:
[30 April 1824]
Source of text:
RS:HS 13.400
Summary:

Sends some observations of Mars, and describes the functioning of some new equipment.

Contributor:
John Herschel Project