Search: Herschel, John in addressee 
1840-1849::1840 in date 
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Showing 101–120 of 282 items

Herschel2230

From:
T. S. Redman
To:
Sir John Herschel
Date:
[31 March 1840]
Source of text:
RS:HS 14.474
Summary:

Describes the process of preparing photogenic paper, taking drawings, and fixing them.

Contributor:
John Herschel Project

Herschel2238

From:
Sir John Richardson
To:
Sir John Herschel
Date:
[17 November 1840]
Source of text:
RS:HS 14.485
Summary:

Thanks JH for letter introducing Mr. Burnet at the Cape. The Hudson Bay Company is recording the temperature of the subsoil at JR's request. Sends some findings, which he will publish.

Contributor:
John Herschel Project

Herschel2443

From:
Edward Sabine
To:
Sir John Herschel
Date:
4 March [1840]
Source of text:
RS:HS 15.297
Summary:

Sends enclosure to JH. [Humphrey] Lloyd also has a copy and Lloyd will send comments directly to JH.

Contributor:
John Herschel Project

Herschel2444

From:
Edward Sabine
To:
Sir John Herschel
Date:
11 December [1840]
Source of text:
RS:HS 15.298
Summary:

Pleased JH will be in London soon. George Peacock and William Whewell will become members of Magnetical Committee. Received information from [J. C.] Ross at Sydney.

Contributor:
John Herschel Project

Herschel2449

From:
Edward Sabine
To:
Sir John Herschel
Date:
20 February [1840]
Source of text:
RS:HS 15.303
Summary:

Will send information from observatories where aurora are visible. Discusses occurrences at various observatories and a letter from [C.] Kreil to [A. T.] Kupffer regarding his observations.

Contributor:
John Herschel Project

Herschel2454

From:
Edward Sabine
To:
Sir John Herschel
Date:
10 May [1840]
Source of text:
RS:HS 15.308
Summary:

[John] Lefroy should replace [Charles] Riddell in Canada. Discusses proposed Norwegian observatory and proposals for various instruments. Navy officers may be helpful observers in colonies.

Contributor:
John Herschel Project

Herschel2466

From:
Edward Sabine
To:
Sir John Herschel
Date:
23 August [1840?]
Source of text:
RS:HS 15.320
Summary:

Reports on letter from Humphrey Lloyd and latest information from [J. C.] Ross's voyage. Has received JH's meteorological plates.

Contributor:
John Herschel Project

Herschel2470

From:
Edward Sabine
To:
Sir John Herschel
Date:
26 March [1840?]
Source of text:
RS:HS 15.324
Summary:

Reports on instruments being sent to Hamburg and to Egyptian observatories. Encloses portion of [K.] Kriel's letter to [A. T.] Kupffer. Reports on [Charles] Riddell's securing a site for a meteorological observatory.

Contributor:
John Herschel Project

Herschel2472

From:
Edward Sabine
To:
Sir John Herschel
Date:
19 June [1840]
Source of text:
RS:HS 15.326
Summary:

[Charles] Riddell's observations suggest Europe and North America experience magnetic disturbances at similar times, but in opposite directions. Suggests course of action for [Charles] Riddell and Lieutenant Younghusband in North America.

Contributor:
John Herschel Project

Herschel2477

From:
Edward Sabine
To:
Sir John Herschel
Date:
[1840]-4-25 or later
Source of text:
RS:HS 15.331
Summary:

Hopes [Humphrey] Lloyd will reconsider V.F. Magnetometer based on JH's remarks. Discusses Canadian observatories. States who will perform U. S. magnetic survey. Discusses micrometer use.

Contributor:
John Herschel Project

Herschel2504

From:
Christian F. Schönbein
To:
Sir John Herschel
Date:
[1840 or earlier?]
Source of text:
RS:HS 15.365
Summary:

Thanks JH for invitation to Slough. Will come to visit.

Contributor:
John Herschel Project

Herschel2799

From:
Edward Sabine
To:
Sir John Herschel
Date:
[8 January 1840]
Source of text:
RS:HS 15.79
Summary:

Sends the corrections of the Meteorological Instructions to JH. Presents a new plan for recording data.

Contributor:
John Herschel Project

Herschel2800

From:
Edward Sabine
To:
Sir John Herschel
Date:
[17 January 1840]
Source of text:
RS:HS 15.80
Summary:

Discusses corrections and title page of a report. Discusses the damage to Charles Riddell's instruments.

Contributor:
John Herschel Project

Herschel2801

From:
Edward Sabine
To:
Sir John Herschel
Date:
[6 February 1840]
Source of text:
RS:HS 15.81
Summary:

Believes Treasury will cover all expenses. The application for a Cairo observatory looks promising and H. C. Oersted is eager to set up a station in Copenhagen. Writes of the instrument requests of other stations.

Contributor:
John Herschel Project

Herschel2802

From:
Edward Sabine
To:
Sir John Herschel
Date:
[15 February 1840]
Source of text:
RS:HS 15.82
Summary:

Plans to order equipment needed for observatories. Asks JH to examine the bills. Announces that both Bavaria and Denmark are planning observatories.

Contributor:
John Herschel Project

Herschel2803

From:
Edward Sabine
To:
Sir John Herschel
Date:
[17 February 1840]
Source of text:
RS:HS 15.83
Summary:

Is of the opinion that plans for the Bavarian observatory station should continue. Announces that the report is finally being printed.

Contributor:
John Herschel Project

Herschel2804

From:
Edward Sabine
To:
Sir John Herschel
Date:
[10 April 1840]
Source of text:
RS:HS 15.84
Summary:

Discusses Charles Riddell's desire to serve at a North American observatory and the expenses involved.

Contributor:
John Herschel Project

Herschel2805

From:
Edward Sabine
To:
Sir John Herschel
Date:
[17 April 1840]
Source of text:
RS:HS 15.85
Summary:

Suggests a book of expenses be kept at the R.S.L.

Contributor:
John Herschel Project

Herschel2806

From:
Edward Sabine
To:
Sir John Herschel
Date:
[22 April 1840]
Source of text:
RS:HS 15.86
Summary:

Discusses plans for a U.S. magnetic observatory and of [Karl] Kreil's paper about predicting earthquakes. Discusses the affairs of other observatories.

Contributor:
John Herschel Project

Herschel2807

From:
Edward Sabine
To:
Sir John Herschel
Date:
24 April [1840]
Source of text:
RS:HS 15.87
Summary:

Has received materials from [A. D.] Bache indicating that the U.S. government has proposed to establish 5 magnetic observatories.

Contributor:
John Herschel Project
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