Search: Herschel, John in addressee 
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1830-1839::1830::04::05 in date 
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From:
Peter Barlow
To:
Sir John Herschel
Date:
[5 April 1830]
Source of text:
RS:HS 3.294
Summary:

Further regarding his projected comparison of telescopes. Did not realize that JH was still working on double stars.

Contributor:
John Herschel Project
Text Online
From:
Mary Somerville
To:
Sir John Herschel
Date:
[5 April 1830]
Source of text:
RS:HS 16.335
Summary:

Offers congratulations on arrival of JH's first child. Thanks him for communicating his thoughts on her manuscript [Mechanism of the Heavens] at such a time.

Contributor:
John Herschel Project, Brigitte Stenhouse