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Herschel, John in correspondent 
1820-1829 in date 
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Herschel12698

From:
Sir John Herschel
To:
David Brewster
Date:
1824
Source of text:
TxU:H/L-0112; Reel 1054
Summary:

Letter to [Edinburgh Philosophical] Journal calling attention to 1809 article by [Paul] Erman of Berlin, which some say anticipated JH's 1824 Bakerian lecture on 'Motions produced in fluid conductors when transmitting the Electric current.' JH compares both papers, admits Erman's priority on some theoretical points but claims originality for JH's experiments.

Contributor:
John Herschel Project

Herschel12733

From:
Sir John Herschel
To:
Michael Faraday
Date:
[4 July 1826]
Source of text:
TxU:H/L-0148; Reel 1054
Summary:

Chemical constitution of meteorites. JH suspects lead-iron alloy. Believes this has not been proposed before. Send specimen for JH's analysis.

Contributor:
John Herschel Project

Herschel1278

From:
Sir John Herschel
To:
Joseph Clement
Date:
[24 July 1828]
Source of text:
RS:HS B27.48
Summary:

Is concerned about the rapid rate of expenditure of the money on Charles Babbage's calculating machine. Recommends a reasonable rate of expenditure until Babbage returns home, which should be in about four months.

Contributor:
John Herschel Project

Herschel12799

From:
Sir John Herschel
To:
Richard Jones
Date:
[1826-9]
Source of text:
TxU:H/L-0205; Reel 1054
Summary:

JH plans to explore volcanic districts of Auvergne and Vivarais, then along Rhine to Bonne and Andermatte. Has cancelled plan to cross to Staffa [Scotland] and explore there.

Contributor:
John Herschel Project

Herschel12816

From:
Sir John Herschel
To:
Gregorio Barnaba Lavia
Date:
[6 October 1825]
Source of text:
TxU:H/L-0222; Reel 1054
Summary:

Gratitude to Gioenian Academy of Natural Sciences of Catania [Sicily] for electing JH a corresponding member. [P.S. 1 Oct. 1825:] Reports elevations on Mount Etna measured by JH with mountain barometer in July 1824, with confirmation by Niccolo Cacciatore. [JH's annotations explain sources of errors in elevations.]

Contributor:
John Herschel Project

Herschel1282

From:
Sir John Herschel
To:
the London Times
Date:
[15 August 1828]
Source of text:
TxU:H/L-0229; Reel 1054 (L: RS:HS B27.54b & Cdraft: RS:HS 25.15.7)
Summary:

In response to an article in The Record, JH writes to The Times to explain what has happened to date regarding the expenditure of public funds for the calculating devices of Charles Babbage, who was then out of England.

Contributor:
John Herschel Project

Herschel12822

From:
Sir John Herschel
To:
Committee for Rebuilding London Bridge
Date:
[1824 to 1831]-6-3
Source of text:
TxU:H/L-0228; Reel 1054
Summary:

Accepts honor of joining committee at ceremony to lay first stone of new bridge. Proposes including platina copies of standard British measures of length and weight in foundation as part of 'precious records' preserved for posterity.

Contributor:
John Herschel Project

Herschel13186

From:
Sir John Herschel
To:
Sir William Watson
Date:
[16 July 1824]
Source of text:
TxU:H/L-0494; Reel 1055 (C: RS:HS 20.183)
Summary:

Written from Palermo, this chatty letter describes JH's time in Italy and Sicily. JH mentions having ascended Mt. Etna and having spent the night on its summit. A second part of this letter is dated July 19 and its location is given as Naples. On way to Hanover.

Contributor:
John Herschel Project

Herschel13189

From:
Sir John Herschel
To:
Susan White
Date:
[25 November 1825]
Source of text:
TxU:H/L-0497; Reel 1055
Summary:

Assures SW that slanderous reports regarding SW's nephew James White have not reached JH or Lady Herschel.

Contributor:
John Herschel Project

Herschel13206

From:
Sir John Herschel
To:
Thomas Young
Date:
[4 November 1824]
Source of text:
TxU:H/L-0513; Reel 1055
Summary:

JH carried portable barometer by Edward Troughton and thermometer by Mr. Newman to Europe and compared these to instruments used by individual scientists and observatories. Reports results to Board of Longitude.

Contributor:
John Herschel Project

Herschel13209

From:
Sir John Herschel
To:
Mary Pitt Herschel
Date:
[23 July 1821]
Source of text:
TxU:H/L-0515.1; Reel 1053
Summary:

JH, Charles Babbage, Richard Jones, and George Peacock arrived in France after difficult voyage.

Contributor:
John Herschel Project

Herschel13210

From:
Sir John Herschel
To:
Mary Pitt Herschel
Date:
[31 July 1821]
Source of text:
TxU:H/L-0515.2; Reel 1053
Summary:

Leaving Paris tomorrow for Geneva and Milan. Describes tour through France. Names scientific men whom JH, Charles Babbage, Richard Jones, and George Peacock met. Visited French Board of Longitude. Alexander von Humboldt was of great service.

Contributor:
John Herschel Project

Herschel13211

From:
Sir John Herschel
To:
Mary Pitt Herschel
Date:
[15 August 1821]
Source of text:
TxU:H/L-0515.3; Reel 1053
Summary:

Describes scenery at Mont Blanc. Trip by mules into mountains. Barometer measurements by Charles Babbage. [Letter continues 16 Aug.:] Plans today include visit to Mar de Glace glacier. [Letter continues 20 Aug.:] Found excellent guide, Coutet, with knowledge of geology. Describes expedition to Mar de Glace glacier and JH's sketches. More barometer observations. [Letter continued 22 Aug. in Geneva:] No mail arrived from Slough. Leave tomorrow for Chambéry and Turin. Planning to leave Italy by 2 Sept.

Contributor:
John Herschel Project

Herschel13212

From:
Sir John Herschel
To:
Mary Pitt Herschel
Date:
[15 September 1821]
Source of text:
TxU:H/L-0515.4
Summary:

Describes Como [Lombardy]. Visit with Pietro Configliachi [professor of physics at University of Pavia]. Crossing of alpine passes and Lake Maggiore. Ascent of Monte Rosa. JH was first Englishman to reach summit. [Letter continued 17 Sept. in Berne:] News from Slough of death of JH's uncle [Alexander Herschel]. Expects to return home in three weeks.

Contributor:
John Herschel Project

Herschel13213

From:
Sir John Herschel
To:
Mary Pitt Herschel
Date:
[8 October 1821]
Source of text:
TxU:H/L-0515.5; Reel 1053
Summary:

Windy passage across Channel. Will arrive home in two days.

Contributor:
John Herschel Project

Herschel13214

From:
Sir John Herschel
To:
Mary Pitt Herschel
Date:
[14 August 1822]
Source of text:
TxU:H/L-0516; Reel 1053 (C: RS:HS B28.6.b)
Summary:

Travels with James Grahame from Calais to Brussels. Visit with General Pierre Cambronne and tour of Waterloo. Leaving tomorrow for Antwerp. Mr. Gibson is useless as traveling companion.

Contributor:
John Herschel Project

Herschel13215

From:
Sir John Herschel
To:
Mary Pitt Herschel
Date:
[4 February 1824]
Source of text:
TxU:H/L-0517.1; Reel 1053
Summary:

Mrs. Babbage, still recuperating, wishes to visit Slough. Recent publication of Charles Babbage's book should excite insurance directors. Paper by Mary Somerville was read at R.S.L. last week. Invitation for MH to visit Somervilles at Chelsea. JH admitted to Geological Society yesterday, presided over by William Buckland. Encloses JH's diploma from Royal Academy of Copenhagen. News of MH's London acquaintances.

Contributor:
John Herschel Project

Herschel13216

From:
Sir John Herschel
To:
Mary Pitt Herschel
Date:
[2 April 1824]
Source of text:
TxU:H/L-0517.2 & -0517.3; Reel 1053
Summary:

Foul weather in Dover delays departure of JH and servant James Child for Calais. Geological formations along road to Dover. Instructions on numbering and preserving personal letters.

Contributor:
John Herschel Project

Herschel13217

From:
Sir John Herschel
To:
Mary Pitt Herschel
Date:
[3 April 1824]
Source of text:
TxU:H/L-0517.4 & -0517.3; Reel 1053
Summary:

Weather is good for Channel crossing. Returns 'book of rates.' It is too cumbersome.

Contributor:
John Herschel Project

Herschel13218

From:
Sir John Herschel
To:
Mary Pitt Herschel
Date:
[7 April 1824]
Source of text:
TxU:H/L-0517.5; Reel 1053
Summary:

Arrival in Paris. Names chemists, mathematicians, and others whom JH met at Institute. Breakfast with D. F. J. Arago at observatory. Problems with passport. Purchase of carriage for trip to Italy. [Letter continued same day from Melun:] En route to Lyons.

Contributor:
John Herschel Project
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