Search: Herschel, John in correspondent 
1840-1849::1841 in date 
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Herschel5471

From:
Francis Beaufort
To:
Sir John Herschel
Date:
[20 February 1841]
Source of text:
RS:HS 3.373 & ACC: Hydrographic Office Letter Book
Summary:

Edward Sabine has asked him to forward J. C. Ross's notes. If JH has finished with Thomas Maclear's letter would he return it.

Contributor:
John Herschel Project

Herschel9505

From:
Robert FitzRoy
To:
Sir John Herschel
Date:
[20 February 1841]
Source of text:
RS:HS 7.250
Summary:

Was pleased to receive the letter and old papers. Remembers his time at the Cape with pleasure. Has been interested, but not convinced, by J. C. Ross's soundings.

Contributor:
John Herschel Project

Herschel3947

From:
Sir John Herschel
To:
Robert Hunt
Date:
[20 February 1841]
Source of text:
George Eastman House, 5.17
Summary:

Unable to give any specifics concerning Louis Jacques Mandé Daguerre's new photographic process. Discovered that old paper specimens produced a much better representation of the spectrum in its natural colors than those obtained at the date of JH's paper; these results are 'light on a dark ground,' which makes JH more hopeful that colored photography will someday be perfected. Has experimented with vegetable substances.

Contributor:
John Herschel Project

Herschel4358

From:
John Taylor, F.R.S.
To:
Sir John Herschel
Date:
[22 February 1841]
Source of text:
RS:HS 17.429
Summary:

Sends JH a quantity of silver ore from Mexico.

Contributor:
John Herschel Project

Herschel802

From:
Sir John Herschel
To:
Richarda Airy
Date:
[22 February 1841]
Source of text:
JHS 2.6
Summary:

Writes to announce the birth of daughter Amelia, and to assure RA that both JH's wife, Margaret, and new daughter are doing well.

Contributor:
John Herschel Project

Herschel9459

From:
Few & Co.
To:
Sir John Herschel
Date:
[23 February 1841]
Source of text:
RS:HS 7.205
Summary:

Has deposited the new conveyance with Messrs. Drummonds and returns the key.

Contributor:
John Herschel Project

Herschel11955

From:
Sir John Herschel
To:
Macedonio Melloni
Date:
[23 February 1841]
Source of text:
RS:HS 12.317 & 22.80
Summary:

Will do all in his power to ensure that MM receives copies of the publications relating to the Fixed Observatories. Does not think MM could have seen a copy of JH's paper on photographic action when he wrote the notice in Annales de chimie. Comments on this paper and more recent experiments in this field.

Contributor:
John Herschel Project

Herschel8645

From:
Sir John Herschel
To:
Peter Mark Roget
Date:
[23 February 1841]
Source of text:
Lion Heart Autographs
Summary:

Notes interest expressed by Macedonio Melloni in meteorological observations. Urges that R.S.L. Council give its attention to the mass of meteorological observations that have accumulated.

Contributor:
John Herschel Project

Herschel3845

From:
Caroline Lucretia Herschel
To:
Sir John Herschel
Date:
[24 February 1841]
Source of text:
unknown
Summary:

Angry that many call William Herschel's 40-ft. reflecting telescope 'useless.'

Contributor:
John Herschel Project

Herschel2862

From:
Edward Sabine
To:
Sir John Herschel
Date:
[24 February 1841]
Source of text:
RS:HS 15.142
Summary:

On discrepancy of data from G. B. Airy and Humphrey Lloyd. Captain Boileau and John Caldecott exchange instruments to normalize data. Will send letters from Airy, [A. T.] Kupffer, Lloyd, ES, and JH to John Lubbock and the R.S.L. Council concerning the discrepancies.

Contributor:
John Herschel Project

Herschel5472

From:
Francis Beaufort
To:
Sir John Herschel
Date:
[24 February 1841]
Source of text:
RS:HS 3.374
Summary:

Admiralty wished to present him with another part of the Cape Observations, and will hold it until someone is deputed to call at the office.

Contributor:
John Herschel Project

Herschel8368

From:
Sir John Herschel
To:
[William Radcliffe Birt]
Date:
[1841-3?]
Source of text:
RS:HS 19.167
Summary:

Received WB's packet. Will send sheets tomorrow. Needs all 'Curves and data' before end of March for final report to B.A.A.S. JH's nerves 'shattered with night work.'

Contributor:
John Herschel Project

Herschel11956

From:
Macedonio Melloni
To:
Sir John Herschel
Date:
[2 March 1841]
Source of text:
RS:HS 12.318
Summary:

Is grateful for JH's obliging offer. Regrets his own unfortunate article regarding JH's experiments; comments on this. Is pleased JH is to continue with his on light.

Contributor:
John Herschel Project

Herschel2471

From:
Edward Sabine
To:
Sir John Herschel
Date:
3 March [1841?]
Source of text:
RS:HS 15.325
Summary:

Sends JH some actinometer observations and a letter from G. B. Airy to forward to Humphrey Lloyd. Also some observations of shooting stars made by [James] Farquharson.

Contributor:
John Herschel Project

Herschel2845

From:
Edward Sabine
To:
Sir John Herschel
Date:
[4 March 1841]
Source of text:
RS:HS 15.125
Summary:

Congratulates JH on his latest child. Notes that data from James Ross show great disturbances at the Kerguelen station simultaneously with Toronto and Greenwich. Has sent various data to C. F. Gauss. Wilhelm Weber reports a new magnetic station at Havana recording by the British system. Notes Ross's dip data supports Gauss's theoretical expectations.

Contributor:
John Herschel Project

Herschel3637

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[5 March 1841]
Source of text:
TCD 1493:192
Summary:

Requests autographed copy of WH's sister's poems, wanting to send them to an acquaintance who translated some of JH's work. Expresses a theory about cause and effect. Mentions minutes of Royal Irish Academy, a reform of the constellations, and WH's three axes of the universe.

Contributor:
John Herschel Project

Herschel13827

From:
F. M. Eardley-Wilmot
To:
Sir John Herschel
Date:
[7 March 1841]
Source of text:
TxU:H/M-0174; Reel 1087
Summary:

Magnetic observatory is still not operational one year after FW's arrival. Thomas Maclear is now in 'Zwartsland' [Zwartkops?]. FW shares quarters with C. P. Smyth and William Mann. Hopes to begin observations next week at Cape Town and Simon's Bay; G. G. Lewis will make observations at Grahamstown. Problems with meteorological instruments. Proposes magnetic survey of entire colony. [JH annotation: Enquire what FW meant about measurement conversions, malfunctioning needle, and broken tube in 19 Feb. 1841 letter to Humphrey Lloyd.]

Contributor:
John Herschel Project

Herschel3768

From:
Sir John Herschel
To:
Caroline Lucretia Herschel
Date:
[7 March 1841]
Source of text:
TxU:H/L-0586.7.a; Reel 1058
Summary:

Reports the birth of Amelia Herschel, JH's eighth child. Forwarding to CH an article describing the telescope of William Parsons.

Contributor:
John Herschel Project

Herschel2447

From:
Edward Sabine
To:
Sir John Herschel
Date:
8 March [1841]
Source of text:
RS:HS 15.301
Summary:

Thinks enclosed letter should be appended to [James] Farquharson's report on aurora. Wants to bring magnetometer to Alford. Hopes JH has [Humphrey] Lloyd's article regarding instruments.

Contributor:
John Herschel Project

Herschel11769

From:
Thomas Maclear
To:
Sir John Herschel
Date:
[8 March 1841]
Source of text:
RS:HS 12.129
Summary:

Came back from Zwartland for a day, but returns tomorrow. Relates news of the measuring of the base line. Visited magnetic observatory; work in Zwartland not yet complete. Magnetic Observatory satisfactory despite slow construction. No news of the obelisk yet.

Contributor:
John Herschel Project
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