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De Morgan, Augustus in addressee 
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Herschel1150

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[1856-6-7 or earlier
Source of text:
RS:HS 25.14.7
Summary:

Wants to make a new musical instrument on the principle of resonance; JH also suggests some improvements in the construction of the organ.

Contributor:
John Herschel Project

Herschel7053

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[12 September 1856]
Source of text:
RS:HS 6.289 & 23.181
Summary:

Thought that AD's last letter was supposed to be written in verse. Hopes his injury will soon improve. Does not recollect any habit of Humphry Davy rubbing his hands together. A professor, [G. J.?] Stoney, has re-invented JH's collimating telescope and not improved it.

Contributor:
John Herschel Project

Herschel7056

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[11 November 1856]
Source of text:
RS:HS 23.183
Summary:

Comments on the state of JH's health, color blindness, missing R.A.S. Notices, and decimal coinage.

Contributor:
John Herschel Project

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

Herschel7100

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
1858
Source of text:
RS:HS 23.251
Summary:

Is AD interested in the Lowndean Professorship at Cambridge?

Contributor:
John Herschel Project

Herschel7080

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[2 February 1858]
Source of text:
RS:HS 23.221
Summary:

Questions the exact beginning of the year 1857, and offers 'Old King Cole' in Latin.

Contributor:
John Herschel Project

Herschel7099

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[1858-2-6 or later]
Source of text:
RS:HS 23.219
Summary:

Still worrying about where does the day begin?

Contributor:
John Herschel Project

Herschel7084

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
1858-3
Source of text:
RS:HS 23.227
Summary:

Riddles, Latin nursery rhymes, and an eclipse description.

Contributor:
John Herschel Project

Herschel7085

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[22 May 1858]
Source of text:
RS:HS 23.231
Summary:

About insects JH's children caught and photographed; on a book on harmonics.

Contributor:
John Herschel Project

Herschel7090

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[12 September 1858]
Source of text:
RS:HS 23.236
Summary:

Errors to be corrected in a new edition of one of JH's writings, including spelling AD's name in the French way.

Contributor:
John Herschel Project

Herschel7092

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[13 October 1858]
Source of text:
RS:HS 23.243
Summary:

On the definition of an island, and an invitation to lecture about a comet.

Contributor:
John Herschel Project

Herschel7096

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[17 December 1858]
Source of text:
RS:HS 23.252
Summary:

About biographical information on George Peacock.

Contributor:
John Herschel Project

Herschel7105

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[7 March 1859]
Source of text:
RS:HS 23.257
Summary:

Responds to AD's 1859-2-24 on forces, which degenerates into nonsense; comments on James Kemplay's writing on comets.

Contributor:
John Herschel Project

Herschel7109

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[15 May 1859]
Source of text:
RS:HS 23.264
Summary:

Comments on 'cause' and 'will.'

Contributor:
John Herschel Project
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