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From:
Giovanni Antonio Plana
To:
Sir John Herschel
Date:
[21 August 1839]
Source of text:
RS:HS 13.435
Summary:

Reports on sending and receiving barometric and magnetic observations. GP's 20 year old daughter is still not married [see GP's 1838-1-6], but GP believes her chances are improving.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Hans Christian Oersted
Date:
[29 July 1839]
Source of text:
RS:HS 22.21
Summary:

Apologizes for having been too busy to sit for a portrait as proposed, thanks HO for his poems, and describes JH's current experiments related to photography.

Contributor:
John Herschel Project
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
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
From:
Sir John Herschel
To:
[Hugh Percy (3rd Duke of Northumberland)]
Date:
[28 January 1839]
Source of text:
TxU:H/L-0287; Reel 1054
Summary:

Grieved that J. C. Stewart desires schoolmaster position at Cape of Good Hope. Attests to Stewart's many business talents, and asks HP to find 'more prominent station' for Stewart.

Contributor:
John Herschel Project
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
From:
Sir John Herschel
To:
Robert Treat Paine
Date:
[4 November 1839]
Source of text:
TxU:H/L-0292; Reel 1054 (C: RS:HS 25.15.9)
Summary:

Just received RP's Dec. 1837 observations, forwarded from Cape of Good Hope. JH is now president of R.S.L. joint committee of Physics and Meteorology. Meteor shower of 10 Aug. 1839. Describes global magnetic survey conducted on Göttingen Mean Time. Hopes U.S. will join survey. [Enclosure: Printed notice of global magnetic survey, listing participating governments, purposes, and instruments.]

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
James Calder Stewart
Date:
[22 January 1839]
Source of text:
TxU:H/L-0426.1; Reel 1055
Summary:

Willing to write to [secretary of state for War and the Colonies, Charles Grant] Lord Glenelg on behalf of JS's application. JH searching for new residence.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
James Calder Stewart
Date:
[27 January 1839]
Source of text:
TxU:H/L-0427; Reel 1055
Summary:

Sends letter of recommendation for JS and returns draft of JS's letter to [Charles Grant] Lord Glenelg, with recommended changes. Promise from Glenelg's father to JS's father [A. Stewart] is grounds for JS's application.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
James Calder Stewart
Date:
[23 March 1839]
Source of text:
TxU:H/L-0428; Reel 1055
Summary:

[Richard] Jones's view is correct. Will wait to hear what Mr. [Meade?] has to say, before JH writes to Mr. Hodges.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
James Calder Stewart and Rose Stewart
Date:
[22 October 1839]
Source of text:
TxU:H/L-0429.2; Reel 1055
Summary:

Birth of [Maria Sophia Herschel]. Awaiting JS's news about Bombay. John [Stewart] and Matilda [Grahame] sailed for France yesterday.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
William Henry Fox Talbot
Date:
[3 March 1839]
Source of text:
TxU:H/L-0475; Reel 1055
Summary:

Sent WT's specimens to J. B. Biot and F. J. D. Arago in Paris. Developed paper sensitive to heat rays of sun 'beyond the spectrum.' Diagram of three spectra: 'luminous, chemical, and thermic.'

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
John Wrottesley
Date:
[24 March 1839]
Source of text:
TxU:H/L-0509; Reel 1055 (C: RS:HS 25.15.8)
Summary:

Commends JW's application for Savilian professor of astronomy at Oxford [see JW's 1839-3-22]. But it is improper for JH to propose JW unless asked to do so by R.A.S. council.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[15 November 1839]
Source of text:
RS:HS 17.298
Summary:

Transmits a message from J. B. Biot, comments on the Daguerreotype, although WT has not tried it.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[7 December 1839]
Source of text:
RS:HS 17.299
Summary:

Comments on many different processes in photography. Still has not tried the Daguerreotype, although WT has had the equipment for a considerable time.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[25 January 1839]
Source of text:
RS:HS 17.277
Summary:

Will give a paper on fixing the image formed by the camera obscura to R.S.L. and wants to review it with JH first.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[28 January 1839]
Source of text:
RS:HS 17.278
Summary:

JH is indisposed, so WT will come to Slough to review paper [see WT's 1839-1-25]. Asks JH about appropriate curve on lenses for camera obscura for 2-foot focus.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[29 January 1839]
Source of text:
RS:HS 17.279a
Summary:

Has received urgent request from Athenaeum to allow them to publish paper on 'Photogenic Drawing' before it is read to R.S.L. in light of announcement of the 'Parisian invention.'

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[11 February 1839]
Source of text:
RS:HS 17.282
Summary:

Wants to withhold description of 'developing' process until it is perfected to obviate others using it. Also refers to second process to make 'positive' and 'negative.'

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[14 February 1839]
Source of text:
RS:HS 17.283
Summary:

Some comments on JH's light and photography experiments, especially effects of different kinds of glass and fixing with ferrocyanate.

Contributor:
John Herschel Project
Author
Document type
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