Search: Herschel, John in author 
1830-1839::1839 in date 
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Showing 61–80 of 148 items

Herschel6033

From:
Sir John Herschel
To:
Francis Baily
Date:
[28 April 1839]
Source of text:
RS:HS 3.158 (C: RS:HS 25.8.20)
Summary:

On the variability of the star Alpha Cassiopeia.

Contributor:
John Herschel Project

Herschel6034

From:
Sir John Herschel
To:
Francis Baily
Date:
[28 April 1839]
Source of text:
RS:HS 3.159 (C: RS:HS 25.8.19)
Summary:

Has marked Thomas Maclear's paper and returned it to Thomas Galloway.

Contributor:
John Herschel Project

Herschel14079

From:
Sir John Herschel
To:
Thomas Best Jervis
Date:
[28 April 1839]
Source of text:
TxU:H/M-0298.2; Reel 1087
Summary:

Let India Board move at its own pace, and do not call on Lord Northampton. JH will write privately to 'Major J.' to suggest proper training for appointed observers.

Contributor:
John Herschel Project

Herschel4470

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[28 April 1839]
Source of text:
Cape Archives/Maclear Papers File 100
Summary:

Sends Michael Faraday's analysis of TM's meteorite specimen. Cape Observatory will receive theodolite and sidereal telescopes. Government orders Antarctic Magnetico-Explorative Expedition. JH's photography work results in unfixed images. Will report on TM's paper concerning the [N. L.] Lacaille's Stations.

Contributor:
John Herschel Project

Herschel1492

From:
Sir John Herschel
To:
William Henry Smyth
Date:
[28 April 1839]
Source of text:
APS B.Sm98.17 (C: RS:HS 22.13)
Summary:

Does not have operational telescope. Suggests WS set 1840 as epoch.

Contributor:
John Herschel Project

Herschel3663

From:
Sir John Herschel
To:
Richard Sheepshanks
Date:
[29 April 1839]
Source of text:
RS:HS 16.5 (C: RS:HS 25.9.2)
Summary:

Discusses arrangements for the printing of a portrait of JH in some copies of a forthcoming volume [JH's Cape Results].

Contributor:
John Herschel Project

Herschel1165

From:
Sir John Herschel
To:
John William Lubbock
Date:
30 April [1839]
Source of text:
RS:HS 25.14.21
Summary:

Has just done photographic experiments using bromine paper, and is very pleased with them. JH notes in a postscript that he had just received a letter from W. H. Fox Talbot stating that Fox Talbot had just discovered bromine paper as well.

Contributor:
John Herschel Project

Herschel12797

From:
Sir John Herschel
To:
Richard Jenkins
Date:
[30 April 1839]
Source of text:
TxU:H/L-0202; Reel 1054
Summary:

Describes three-year magnetic survey proposed by R.S.L. Asks H.E.I.C. court of directors to provide support for three observing stations: at Madras, at Bombay, and in Himalayas. Humphrey Lloyd will supervise training of observers.

Contributor:
John Herschel Project

Herschel8821

From:
Sir John Herschel
To:
William Henry Fox Talbot
Date:
[9 May 1839]
Source of text:
Science Museum Talbt 1/18
Summary:

Just visited L. J. M. Daguerre. Praises his images as 'miraculous' and also Daguerre's times of exposure. Daguerre puts his images on 'thin sheets of plated copper.'

Contributor:
John Herschel Project

Herschel12878

From:
Sir John Herschel
To:
Hugh Percy (3rd Duke of Northumberland)
Date:
[30 May 1839]
Source of text:
TxU:H/L-0288; Reel 1054
Summary:

[Extract] Suggests change in proposed distribution [of Cape Results]. Richard Sheepshanks offered to subsidize portrait of JH, to be distributed with complimentary copies [of Cape Results].

Contributor:
John Herschel Project

Herschel1945

From:
Sir John Herschel
To:
James Elliot
Date:
[30 May 1839]
Source of text:
DMC 695A.885.24
Summary:

Thanks JE for the account of an experiment performed by JE using an iron ring and a magnet, the results of which JE finds illustrative of the phenomena of Saturn's rings.

Contributor:
John Herschel Project

Herschel4469

From:
Sir John Herschel
To:
Thomas Maclear
Date:
1839-6
Source of text:
Cape Archives/Maclear Papers File 100
Summary:

Urges TM to observe Comet Encke. Anxious about Cape Results completion. Announces move to Collingwood. Requests another meteorite sample. Five schoolmasters to be sent to South Africa. Unable to send refractor.

Contributor:
John Herschel Project

Herschel12789

From:
Sir John Herschel
To:
John Cam Hobhouse
Date:
[4 June 1839]
Source of text:
TxU:H/L-0194; Reel 1054
Summary:

Received Hobhouse's letter of 27 May with reply from H.E.I.C. board of directors regarding establishment of magnetic observatories in India. D. F. J. Arago recommends additional station on Socotra Island [in Gulf of Aden].

Contributor:
John Herschel Project

Herschel2193

From:
Sir John Herschel
To:
Lord John Russell
Date:
[5 June 1839]
Source of text:
RS:HS 14.437 (C: RS:HS 22.14)
Summary:

Reticent to accept fellowship of London University if obligations of time and attention are too great. Requests more time to consider responsibilities of the post.

Contributor:
John Herschel Project

Herschel3560

From:
Sir John Herschel
To:
James David Forbes
Date:
[6 June 1839]
Source of text:
St. Andrews 32 (C: RS:HS 22.15)
Summary:

Writes 'in haste' to thank JF for a pair of papers. Comments on Louis Daguerre's pictures in Paris.

Contributor:
John Herschel Project

Herschel13408

From:
Sir John Herschel
To:
Unidentified
Date:
[6 June 1839]
Source of text:
TxU:H/L-0641; Reel 1089
Summary:

Departure of J. C. Ross for Antarctic expedition is approaching. Hopes that Admiralty will soon authorize R.S.L. to assist Ross in preparing instruments and coordinating global observations.

Contributor:
John Herschel Project

RS-MM-000635

From:
John Frederick William Herschel
To:
J F W Herschel
Date:
11 June 1839
Source of text:
MM/11/139, Royal Society
Summary:

No summary available.

Contributor:
Royal Society

Herschel8631

From:
Sir John Herschel
To:
Julia Margaret Cameron
Date:
[16 June 1839]
Source of text:
Getty Center
Summary:

Thanks for gifts sent to JH's children. Gives information on various persons including John Wrottesley and Sir Edward Ryan.

Contributor:
John Herschel Project

Herschel10620

From:
Sir John Herschel
To:
Luke Howard
Date:
[16 June 1839]
Source of text:
RS:HS 10.1 & 22.16
Summary:

LH's meteorological circular register was laid before the Meteorological Committee, which considers it worthy of notice. Comments on this, and would like to discuss the matter further.

Contributor:
John Herschel Project

Herschel8691

From:
Sir John Herschel
To:
Carl Friedrich Gauss
Date:
[17 June 1839]
Source of text:
NSUB Cod.Ms.Gauss 99 (C: RS:HS 22.17)
Summary:

Comments on CG's paper on the south magnetic pole, and on British efforts now underway to make magnetic observations.

Contributor:
John Herschel Project
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