Search: 1850-1859::1857 in date 
De Morgan, Augustus in addressee 
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Herschel7060

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
1857-2
Source of text:
RS:HS 23.190
Summary:

Offers AD a puzzle and JH's solution to AD's problem about a body revolving in the evolute of an ellipse. On sending Francis Baily's correspondence to Greenwich.

Contributor:
John Herschel Project

Herschel7062

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[1 April 1857]
Source of text:
RS:HS 23.192
Summary:

Reading proofs of JH's Essays Q. E. R.; working on an article on meteorology.

Contributor:
John Herschel Project

Herschel7064

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[16 May 1857]
Source of text:
RS:HS 23.200
Summary:

On some odd results JH has arrived at about P. S. Laplace's barometric formula.

Contributor:
John Herschel Project

Herschel7066

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[10 June 1857]
Source of text:
RS:HS 23.204
Summary:

On magic squares.

Contributor:
John Herschel Project

Herschel7068

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[8 October 1857]
Source of text:
RS:HS 6.299 & 23.207
Summary:

Regarding the possibility of decimal coinage. Washes his hands of adjectives expressed in algebraic form. Has received good news from India.

Contributor:
John Herschel Project

Herschel7072

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[21 October 1857]
Source of text:
RS:HS 23.210
Summary:

Comments about JH's ancestor, Hercules, and replies to S. J. Loyd's (1st Baron Overstone) queries [see AD's 1857-10-9].

Contributor:
John Herschel Project

Herschel7076

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[26 November 1857]
Source of text:
RS:HS 23.215
Summary:

A proposition in perspective, and some nonsense.

Contributor:
John Herschel Project
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