Search: John Herschel in collection 
John Herschel Project in contributor 
De Morgan, Augustus in correspondent 
1840-1849::1841 in date 
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From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[9 February 1841]
Source of text:
RS:HS 6.185
Summary:

Regarding JH's telescope. Includes a rhyme on it.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[31 May 1841]
Source of text:
RS:HS 22.86
Summary:

Thanks AD for his theorems; comments on the value of such abstract speculations.

Contributor:
John Herschel Project
From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[10 October 1841]
Source of text:
RS:HS 6.186
Summary:

Points out an error JH has made concerning J. E. Bode's law. What is the proper notation for the satellites?

Contributor:
John Herschel Project