Search: De Morgan, Augustus in correspondent 
1850-1859 in date 
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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
From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[2 April 1857]
Source of text:
RS:HS 6.296
Summary:

Sending a little joke on a political theme. Further regarding a query of JH's on a rabbit. Gives a problem on a polygon. Meteorology is peculiar as weather does not appear to be governed by any laws.

Contributor:
John Herschel Project
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
From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[20 May 1857]
Source of text:
RS:HS 6.297
Summary:

Returns his cancel, which he found very amusing. Mrs. De Morgan is now at Hampstead suffering from an incurable complaint. Further comments on the beats of musical consonances and Robert Smith's theories.

Contributor:
John Herschel Project
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
From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[7 August 1857]
Source of text:
RS:HS 6.298
Summary:

Hopes his health is improving. Where can he find the article expressing adjectives in algebraic symbols? Went to the R.A.S. in July and found much as usual. Mrs. De M. now at Hythe with the children. Elizabeth Baily appears to be in excellent health.

Contributor:
John Herschel Project
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
From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[9 October 1857]
Source of text:
RS:HS 6.300
Summary:

S. J. Loyd's (1st Baron Overstone) queries and the work of the Commission on the Decimal Coinage. Is sure he read the algebraic adjectives in the Memoirs of the Analytical Society. May be related in some way. His wife is slowly recovering. Has JH read about the Devil's Elixir?

Contributor:
John Herschel Project
From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[11 October 1857]
Source of text:
RS:HS 6.301
Summary:

Has received a list of witnesses whose answers have been printed for Thomas Spring-Rice (1st Baron Monteagle).

Contributor:
John Herschel Project
From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[14 October 1857]
Source of text:
RS:HS 6.302
Summary:

Hopes the Indian mail has taken a weight off JH's mind. George Peacock is anxious that JH should be in their plot regarding the introduction of the decimal coinage.

Contributor:
John Herschel Project
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
From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[23 October 1857]
Source of text:
RS:HS 6.303
Summary:

Will send the proofs. Has heard all about JH's ancestor [Hercules]. Miss Louisa has committed manslaughter.

Contributor:
John Herschel Project
From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[11 November 1857]
Source of text:
RS:HS 6.304
Summary:

Has the proofs. Gives some queries concerning them.

Contributor:
John Herschel Project
From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[13 November 1857]
Source of text:
RS:HS 6.305
Summary:

S. J. Loyd (1st Baron Overstone) has agreed that the papers be presented to the Crown. Pray let him have his proof as soon as possible.

Contributor:
John Herschel Project
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
From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[27 November 1857]
Source of text:
RS:HS 6.306
Summary:

Write to Mr. Richerly for as many as he wants. Has sent proof to George Peacock; might send one to the Dean of Salisbury. County persons are capital people for their purposes.

Contributor:
John Herschel Project
From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[1 January 1858]
Source of text:
RS:HS 6.307
Summary:

Too busy to answer his last letter until now. His theorem on perspective is pretty and easy. Quotes one he uses. Has been busy finding the proof that every algebraic equation has a root. Has been organ tuning. Comments on the method of tuning using beats.

Contributor:
John Herschel Project
From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[1 February 1858]
Source of text:
RS:HS 6.308
Summary:

Congratulations and best wishes for JH's daughter recently married. If he has any material for the annual report, please send it.

Contributor:
John Herschel Project
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
From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[7 February 1858]
Source of text:
RS:HS 6.309
Summary:

Queries on what meridian the year began. Returned a book to the R.S.L., which had been away for many years. Believes the R.S.L. Library was expurgated between 1734 and 1740.

Contributor:
John Herschel Project