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Herschel, John in correspondent 
Sabine, Edward in correspondent 
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Herschel2350

From:
Edward Sabine
To:
Sir John Herschel
Date:
[17 June 1848]
Source of text:
RS:HS 15.222
Summary:

Discusses reduction of observations, continuation of various observatories, and the necessary financial arrangements for each. JH's actinometer instructions were misunderstood at Toronto.

Contributor:
John Herschel Project

Herschel2351

From:
Edward Sabine
To:
Sir John Herschel
Date:
[23 June 1848]
Source of text:
RS:HS 15.223
Summary:

Hopes JH can attend council meeting on 7 July. Thinks Kew Observatory could be made an important magnetic and meteorological station.

Contributor:
John Herschel Project

Herschel2352

From:
Edward Sabine
To:
Sir John Herschel
Date:
[3 July 1848]
Source of text:
RS:HS 15.224
Summary:

Hoping JH receives [Francis] Ronalds's and [W. R.] Birt's statements regarding Kew Observatory. Asks JH to bring William Parson's note to their [JH and ES's] upcoming meeting. Discusses finances of Kew.

Contributor:
John Herschel Project

Herschel2353

From:
Edward Sabine
To:
Sir John Herschel
Date:
[29 July 1848]
Source of text:
RS:HS 15.225
Summary:

[John] Murray is wrong; ES has no more manuscripts. Admiralty orders many ships to perform meteorological observations. Old R.S.L. meteorological forms out of date.

Contributor:
John Herschel Project

Herschel2354

From:
Edward Sabine
To:
Sir John Herschel
Date:
[30 July 1848]
Source of text:
RS:HS 15.226
Summary:

Received intelligence from [W. H.] Sykes that [William] Mann will have appointment at Madras. Knows [W. R.] Birt wants to succeed Mann [at Cape Observatory].

Contributor:
John Herschel Project

Herschel2355

From:
Edward Sabine
To:
Sir John Herschel
Date:
[9 September 1848]
Source of text:
RS:HS 15.227
Summary:

[Charles?] Brooke received £500 for his photographic apparatus. Thinks [Francis] Ronalds should receive similar compensation for his device. Discusses apparatus and award.

Contributor:
John Herschel Project

Herschel2356

From:
Edward Sabine
To:
Sir John Herschel
Date:
[3 January 1849]
Source of text:
RS:HS 15.228
Summary:

Discusses letter to [G. B.] Airy and JH's response to it. Discusses instruments at Toronto Observatory. Describes 18 November 1841 magnetic disturbances. Working on Atlantic declination maps.

Contributor:
John Herschel Project

Herschel2357

From:
Edward Sabine
To:
Sir John Herschel
Date:
[25 February 1850]
Source of text:
RS:HS 15.229
Summary:

Discusses shipping some of JH's books, with a shipment of other books for the Royal Society, to the R.S.L. in order to save shipping charges.

Contributor:
John Herschel Project

Herschel2358

From:
Edward Sabine
To:
Sir John Herschel
Date:
[6 March 1850]
Source of text:
RS:HS 15.230
Summary:

Glad JH received gelatine paper. Discusses magnetic experiments at Toronto and Hobarton. Discusses R.S.L. committees and preparation of instruments for Arctic expedition.

Contributor:
John Herschel Project

Herschel2359

From:
Edward Sabine
To:
Sir John Herschel
Date:
[8 March 1850]
Source of text:
RS:HS 15.231
Summary:

Hypothesizes that annual variation of Dip and Total Force at Toronto may be caused by greater proximity of earth and sun. Discusses annual variations.

Contributor:
John Herschel Project

Herschel2360

From:
Edward Sabine
To:
Sir John Herschel
Date:
[22 August 1851]
Source of text:
RS:HS 15.232
Summary:

Wants advice regarding recalculation of magnetic lines using [C. F.] Gauss's method and new numerical data. This will be a provisional calculation.

Contributor:
John Herschel Project

Herschel2362

From:
Edward Sabine
To:
Sir John Herschel
Date:
[7 October 1851]
Source of text:
RS:HS 15.233
Summary:

Saw [J. B.] Listing, who may see JH soon. Sends volume of Cape magnetic observations. Thermometer at Kew is a great success. New thermometers compare favorably with [Henri] Regnault's.

Contributor:
John Herschel Project

Herschel2363

From:
Edward Sabine
To:
Sir John Herschel
Date:
[10 November 1851]
Source of text:
RS:HS 15.234
Summary:

Read JH's Admiralty Manual meteorology article. Disagrees with statement regarding barometer and pressure of dry atmosphere. Discusses atmosphere and barometer at some length.

Contributor:
John Herschel Project

Herschel2364

From:
Edward Sabine
To:
Sir John Herschel
Date:
[16 March 1852]
Source of text:
RS:HS 15.235
Summary:

Discusses regulations of bequest, which will benefit chemistry and physics. Discusses relationship between solar spot period and magnetic disturbances. Wants JH's comments on paper regarding this topic.

Contributor:
John Herschel Project

Herschel2365

From:
Edward Sabine
To:
Sir John Herschel
Date:
[12 April 1852]
Source of text:
RS:HS 15.236
Summary:

Believes similarity of period of solar spots and that of terrestrial magnetic variation is more than coincidental.

Contributor:
John Herschel Project

Herschel2366

From:
Edward Sabine
To:
Sir John Herschel
Date:
[16 April 1852]
Source of text:
RS:HS 15.237
Summary:

Discusses magnetic observations from Toronto and Hobarton from the 1840s. Attempting to determine when range of variation was greatest.

Contributor:
John Herschel Project

Herschel2369

From:
Edward Sabine
To:
Sir John Herschel
Date:
[9 February 1856]
Source of text:
RS:HS 15.239
Summary:

Glad JH is recovering and free from official duties [at the Mint]. Discusses his upcoming papers regarding magnetism.

Contributor:
John Herschel Project

Herschel2371

From:
Edward Sabine
To:
Sir John Herschel
Date:
[19 March 1857]
Source of text:
RS:HS 15.240
Summary:

Discusses [H. W.] Dove's works regarding rotating storms. New information from Russian observatories gives a more complete understanding of the phenomenon. Has not seen Keith Johnson's new edition of Physical Atlas.

Contributor:
John Herschel Project

Herschel2373

From:
Edward Sabine
To:
Sir John Herschel
Date:
[6 April 1857]
Source of text:
RS:HS 15.242
Summary:

Glad to know which of ES's papers JH has. Sends another along with maps from [Keith] Johnson's Physical Atlas. Discusses JH's ideas regarding relationship between solar spots and magnetic disturbances.

Contributor:
John Herschel Project

Herschel2374

From:
Edward Sabine
To:
Sir John Herschel
Date:
[6 April 1857]
Source of text:
RS:HS 15.243
Summary:

Mentions [P.] Plantamour's memoir on barometer and a criticism by Mr. Dilams[?]. Comprehending why variations of magnetic disturbances correspond in period with terrestrial year is difficult.

Contributor:
John Herschel Project
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