Search: Herschel, John in correspondent 
1840-1849::1842 in date 
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Herschel11034

From:
Richard Jones
To:
Sir John Herschel
Date:
[26 March 1842]
Source of text:
RS:HS 10.376
Summary:

Has just confirmed the Hawkhurst apportionment; comments on this. Encloses a copy of the notice.

Contributor:
John Herschel Project

Herschel11035

From:
Richard Jones
To:
Sir John Herschel
Date:
[21 September 1842]
Source of text:
RS:HS 10.377
Summary:

Grateful for the account of Lady Herschel. Feels sorry for James Stewart; hopes to visit him later. Enjoyed himself in Holland; then went on to Germany, which he hopes to revisit when he has learned more of their language. Brother of Mrs. Jones has died.

Contributor:
John Herschel Project

Herschel1122

From:
Sir John Herschel
To:
Charles Wheatstone
Date:
[4 December 1842]
Source of text:
RS:HS 25.11.4
Summary:

Sends CW a specimen of JH's 'mercurial photographic process.' JH is pleased that W. H. Fox Talbot received the Rumford medal.

Contributor:
John Herschel Project

Herschel11234

From:
William Lassell
To:
Sir John Herschel
Date:
[10 March 1842]
Source of text:
RS:HS 11.125
Summary:

Sending a description of the observatory he has erected, containing an equatorially mounted Newtonian reflector. Has high opinion of its efficiency. Has detected a sixth star near the trapezium of Orionis.

Contributor:
John Herschel Project

Herschel11314

From:
Bernard A. von Lindenau
To:
Sir John Herschel
Date:
[18 May 1842]
Source of text:
RS:HS 11.219
Summary:

It is a long time since he thanked him for the assistance in becoming a member of the R.S.L. and the R.A.S. Doubtless his work at the Cape was a great success. Hoped to visit England again but seems improbable now. Sends J. F. Encke's memoir for the R.S.L., R.A.S. and JH. Is very interested in his memoir on the variable light of Orionis. C. F. Gauss continues his magnetism.

Contributor:
John Herschel Project

Herschel11322

From:
John Lindley
To:
Sir John Herschel
Date:
[4 February 1842]
Source of text:
RS:HS 11.227
Summary:

Not much is known about the circumstances that affect the color of plants. JH's researches will be valuable if they throw any light on the subject. Comments on the various theories affecting the color of plants.

Contributor:
John Herschel Project

Herschel11373

From:
Humphrey Lloyd
To:
Sir John Herschel
Date:
[22 August 1842]
Source of text:
RS:HS 11.281
Summary:

Thinks it necessary to revise the instructions for the magnetic observations. Makes some suggestions for the Report of the Committee.

Contributor:
John Herschel Project

Herschel11374

From:
Sir John Herschel
To:
Humphrey Lloyd
Date:
[24 August 1842]
Source of text:
RS:HS 11.282 (C: RS:HS 22.137)
Summary:

Regarding the revision of the instructions for the magnetic observatories.

Contributor:
John Herschel Project

Herschel11375

From:
Humphrey Lloyd
To:
Sir John Herschel
Date:
[31 August 1842]
Source of text:
RS:HS 11.283
Summary:

Has just received JH's circular. Was not fully aware of the labor involved in drawing up the Report of the Council. Needs a new edition of the part concerning the fixed observatories. Outlines method for new edition. Sabine should be responsible for the material on Magnetic Surveys.

Contributor:
John Herschel Project

Herschel1146

From:
Sir John Herschel
To:
[Francis Baily?]
Date:
[1842?]
Source of text:
RS:HS 25.14.2
Summary:

A revised set of proposals for Southern constellation reform [see JH's 1840] to be presented to the next B.A.A.S. meeting.

Contributor:
John Herschel Project

Herschel1157

From:
Sir John Herschel
To:
Alexander von Humboldt
Date:
[1842-8-24 or later]
Source of text:
RS:HS 25.14.14
Summary:

Writes to send thanks by way of AH to the King of Prussia for the award of the Order of Merit. JH also comments on some astronomical matters.

Contributor:
John Herschel Project

Herschel11596

From:
Sir John Herschel
To:
William Lassell
Date:
[20 March 1842]
Source of text:
RS:HS 22.114
Summary:

Comments on WL's finding a sixth star in the trapezium of Orion [see WL's 1842-3-10]; lists other catalogues that identify that star.

Contributor:
John Herschel Project

Herschel11597

From:
Sir John Herschel
To:
Humphrey Lloyd
Date:
[2 September 1842]
Source of text:
RS:HS 22.134
Summary:

Urges some revision in both the report and instructions for the magnetic observations.

Contributor:
John Herschel Project

Herschel1160

From:
Sir John Herschel
To:
Robert Hunt
Date:
[1842-12-9 or later]
Source of text:
RS:HS 25.14.15
Summary:

Is anxious for some means to be developed to get a measurable quantity [preferably by weight] from the action of a beam of light on a surface. JH has been experimenting in photography with 'flouric' compounds.

Contributor:
John Herschel Project

Herschel11641

From:
John McClelland
To:
Sir John Herschel
Date:
[25 December 1842]
Source of text:
RS:HS 12.6
Summary:

Sending, care of Dr. Grant, the first part of a series of experiments on the magnetic influence of light, which appeared recently in the Calcutta Journal. Has been unable to obtain a characteristic specimen of Kankar in Bengal. Dr. Hugh Falconer is an expert on the Kankar in Bengal and he will try to obtain information from Falconer.

Contributor:
John Herschel Project

Herschel11771

From:
Thomas Maclear
To:
Sir John Herschel
Date:
[28 March 1842]
Source of text:
RS:HS 12.131
Summary:

Received JH's constellation reform paper. Reports on triangulation at Zwartland and observations of possible variable stars. Obelisk at Feldhausen erected; relates controversies over the site.

Contributor:
John Herschel Project

Herschel1191

From:
John Phillips
To:
Sir John Herschel
Date:
[10 July 1842]
Source of text:
RS:HS B26.8
Summary:

Informs JH that the B.A.A.S. has place him on a committee to conduct experiments by capture balloon on the atmosphere.

Contributor:
John Herschel Project

Herschel11910

From:
Johann Heinrich Mädler
To:
Sir John Herschel
Date:
[8 April 1842]
Source of text:
RS:HS 12.272
Summary:

Observations on double stars.

Contributor:
John Herschel Project

Herschel11911

From:
Sir John Herschel
To:
Johann Heinrich Mädler
Date:
[1842-4]
Source of text:
RS:HS 12.273 & 22.144
Summary:

Is gratified that JM is taking an interest in double stars. Comments on some of the observations and time of their orbits.

Contributor:
John Herschel Project

Herschel1192

From:
John Phillips
To:
Sir John Herschel
Date:
[10 July 1842]
Source of text:
RS:HS B26.9
Summary:

Informs JH that the B.A.A.S. has placed him on a committee to supervise the translation and publication of foreign scientific memoirs.

Contributor:
John Herschel Project
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