Search: Herschel, John in correspondent 
1840-1849::1841 in date 
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Showing 41–60 of 301 items

Herschel10624

From:
Luke Howard
To:
Sir John Herschel
Date:
[1 February 1841]
Source of text:
RS:HS 10.5
Summary:

Has been considering the reasons for the great depression of the barometer in November 1840. Thinks JH may be interested in the enclosed essay. Would be pleased if it could be read to the Royal Society.

Contributor:
John Herschel Project

Herschel8367

From:
Sir John Herschel
To:
[William Radcliffe Birt]
Date:
[1841-2?]
Source of text:
RS:HS 19.166
Summary:

Explains 'discordances' as contraction of damp paper. Use 'Engraved Squares' to avoid this error. Possible error in barometer observations from Montreal. Diurnal 'undulation' appearing in data. American observations arrived, may fill 'missing intervals.' Keep record of expenses incurred. Postscript on color variation in stars.

Contributor:
John Herschel Project

Herschel9504

From:
Sir John Herschel
To:
Robert FitzRoy
Date:
[2 February 1841]
Source of text:
RS:HS 7.249
Summary:

Returning some papers that should have been returned earlier. Hopes all are well.

Contributor:
John Herschel Project

Herschel2859

From:
Edward Sabine
To:
Sir John Herschel
Date:
[2 February 1841]
Source of text:
RS:HS 15.139
Summary:

Encloses letter from G. B. Airy. Suggests new method of magnetic observation.

Contributor:
John Herschel Project

Herschel2843

From:
Edward Sabine
To:
Sir John Herschel
Date:
[5 February 1841]
Source of text:
RS:HS 15.123
Summary:

Has learned of the availability of a house at Kew, which could be used as a magnetic and meteorological observatory. Dr. Robinson has received the instruments.

Contributor:
John Herschel Project

Herschel2860

From:
Edward Sabine
To:
Sir John Herschel
Date:
[5 February 1841]
Source of text:
RS:HS 15.140
Summary:

Presents data on various disturbances. Awaits advice from C. F. Gauss. Discusses determination of intervals between observations. Mentions proposal to continue observations for 3 years.

Contributor:
John Herschel Project

Herschel8617

From:
Sir John Herschel
To:
Julian Jackson
Date:
[5 February 1841]
Source of text:
Royal Geographical Society
Summary:

A portable magnetometer purchased by the B.A.A.S. is now available as a loan for use in magnetic survey of British Guyana.

Contributor:
John Herschel Project

Herschel2465

From:
Edward Sabine
To:
Sir John Herschel
Date:
7 February [1841?]
Source of text:
RS:HS 15.319
Summary:

Will be happy to send particulars from [C. F.] Gauss's information. [Humphrey] Lloyd's instrument records changes in horizontal intensity best. Wants to employ magnetometers in New York.

Contributor:
John Herschel Project

Herschel1733

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[8 February 1841]
Source of text:
TxU:H/M-0627.2
Summary:

A notice of meeting of the Standards Commission.

Contributor:
John Herschel Project

Herschel1734

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[8 February 1841]
Source of text:
TxU:H/M-0627.3
Summary:

A note to accompany a draft of the report of the Standards Commission.

Contributor:
John Herschel Project

Herschel528

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[8 February 1841]
Source of text:
RGO 6.340.298a
Summary:

Sends JH a copy of draft report [see JH's 1841-1-20], and indicates procedure for coming meeting.

Contributor:
John Herschel Project

Herschel6883

From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[9 February 1841]
Source of text:
RS:HS 6.185
Summary:

Regarding JH's telescope. Includes a rhyme on it.

Contributor:
John Herschel Project

Herschel2861

From:
Sir John Herschel
To:
Edward Sabine
Date:
[9 February 1841]
Source of text:
RS:HS 15.141 (C: RS:HS 22.111)
Summary:

Advice for standardizing observations, to be given to the Physical Committee of the R.S.L.

Contributor:
John Herschel Project

Herschel10737

From:
Sir John Herschel
To:
Robert Hunt
Date:
[10 February 1841]
Source of text:
RS:HS 22.79
Summary:

Has not lately done much work in photography, except to work with paper treated with vegetable substances.

Contributor:
John Herschel Project

Herschel836

From:
Sir John Herschel
To:
Margaret Brodie Herschel
Date:
[11 February 1841]
Source of text:
JHS 3.21e
Summary:

It will be difficult for JH to get away to Collingwood as planned as discussions [?] are slow; some family news.

Contributor:
John Herschel Project

Herschel1735

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[12 February 1841]
Source of text:
TxU:H/M-0627.4
Summary:

A notice of meeting of the Standards Commission.

Contributor:
John Herschel Project

Herschel1736

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[17 February 1841]
Source of text:
TxU:H/M-0627.5 (C: RGO 6.340.298b)
Summary:

Asks JH to put in writing proposals JH had made at a Standards Commission meeting, especially those relating to nomenclature [see GA's 1841-2-8].

Contributor:
John Herschel Project

Herschel529

From:
Sir John Herschel
To:
George Biddell Airy
Date:
1841-2-17 or later
Source of text:
RGO 6.340.299
Summary:

A note to accompany proposals for the Standards Commission to consider [see GA's 1841-2-17]; twenty pages of proposals are appended.

Contributor:
John Herschel Project

Herschel5349

From:
Elizabeth [Betty] Plumleigh Babbage
To:
Sir John Herschel
Date:
[19 February 1841]
Source of text:
RS:HS 2.296
Summary:

Thanks and appreciation for past and present friendship.

Contributor:
John Herschel Project

Herschel2844

From:
Edward Sabine
To:
Sir John Herschel
Date:
[20 February 1841]
Source of text:
RS:HS 15.124
Summary:

Francis Beaufort will send JH sheets from James Ross covering trip from the Cape to Van Diemen's Land. Laments Charles Riddell's leave of absence but acknowledges replacement Lieutenant Younghusband's skill. States that C. F. Gauss has informed him by letter of the location of the south magnetic pole. Informs of [Edward] Belcher's letter concerning various magnetic stations in the South Pacific.

Contributor:
John Herschel Project
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