Search: De Morgan, Augustus in correspondent 
Herschel, John in correspondent 
1840-1849 in date 
letter in document-type 
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Showing 61–80 of 126 items

Herschel6981

From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[10 May 1848]
Source of text:
RS:HS 6.245
Summary:

Returns the papers of John Forbes (on mathematical subject) and comments on them. Suggests what the R.S.L. should do in such cases.

Contributor:
John Herschel Project

Herschel6984

From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[13 November 1848]
Source of text:
RS:HS 6.246
Summary:

The tract JH means is by L. A. Sédillot on the history of astronomy of the Arabs. Comments on this. Possesses it but it is bound in with a lot of other papers so is too heavy to send. Would he give John Williams permission to open letters addressed to the President of the R.A.S.

Contributor:
John Herschel Project

Herschel6987

From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[30 November 1848]
Source of text:
RS:HS 6.247
Summary:

Has been hunting JH's proposition through the books and finds that it has dropped out of use, though the older geometrical books include it.

Contributor:
John Herschel Project

Herschel6989

From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[2 February 1849]
Source of text:
RS:HS 6.248
Summary:

Would he trouble himself about the address only; all the rest will be arranged for him.

Contributor:
John Herschel Project

Herschel6991

From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[3 March 1849]
Source of text:
RS:HS 6.250
Summary:

Finds that some of the pages from the paper JH recently sent him are missing. Please send if he still has them. H. P. Brougham (Baron Brougham and Vaux) does not mean to attack the undulating theory. Regarding solar spots and the surface of the moon.

Contributor:
John Herschel Project

Herschel6993

From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[18 March 1849]
Source of text:
RS:HS 6.251
Summary:

Regarding the early history of the calendar. Comments on the various versions.

Contributor:
John Herschel Project

Herschel6997

From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[27 March 1849]
Source of text:
RS:HS 6.252
Summary:

Has received three packets, dated and initialed. Further comments regarding Julius Caesar and the calendar.

Contributor:
John Herschel Project

Herschel7000

From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[5 May 1849]
Source of text:
RS:HS 6.253
Summary:

Many thanks for his astronomy [Outlines Astr.]. Will read it later when he has more time.

Contributor:
John Herschel Project

Herschel7001

From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[22 May 1849]
Source of text:
RS:HS 6.254
Summary:

Sends extracts from book by Mr. Hopkins on the solar system. Has his own theories on the Augustan calendar proved to his own mind. No authority for giving the name Saras to the period of 223 lunations.

Contributor:
John Herschel Project

Herschel7002

From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[2 September 1849]
Source of text:
RS:HS 6.255
Summary:

Regarding their various points of view on a certain question.

Contributor:
John Herschel Project

Herschel1147

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[1844 or earlier]
Source of text:
RS:HS 25.14.3
Summary:

Thanks AD for having pointed out an error in one of JH's papers.

Contributor:
John Herschel Project

Herschel6882

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[26 June 1840]
Source of text:
RS:HS 22.55
Summary:

Thanks AD for a correction in one of JH's writings; tries to explain the partial echo that occurs when blowing across the end of an open pipe.

Contributor:
John Herschel Project

Herschel6884

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

Herschel6886

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[17 November 1842]
Source of text:
RS:HS 22.142
Summary:

Thanks AD for the corrections to JH's writing on astronomy; congratulates AD on his book on differential calculus.

Contributor:
John Herschel Project

Herschel6890

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[29 January 1844]
Source of text:
RS:HS 22.175
Summary:

Wants to set up a benefit club; for mutual insurance of artisans, etc., and is asking AD for actuarial information.

Contributor:
John Herschel Project

Herschel6892

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[5 February 1844]
Source of text:
RS:HS 22.176
Summary:

Questions about actuarial information in AD's 1844-1-30.

Contributor:
John Herschel Project

Herschel6895

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[18 February 1844]
Source of text:
RS:HS 22.177
Summary:

On poor attendance at R.A.S. dinner, and on the results of unrestricted population growth.

Contributor:
John Herschel Project

Herschel6897

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
1844-3
Source of text:
RS:HS 22.178
Summary:

Details of printing the policy for the benefit society.

Contributor:
John Herschel Project

Herschel6898

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
1844-3
Source of text:
RS:HS 22.179
Summary:

More details of the benefit society.

Contributor:
John Herschel Project

Herschel6899

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
1844-3
Source of text:
RS:HS 22.180
Summary:

More details of the benefit society.

Contributor:
John Herschel Project
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