Search: John Herschel Project in contributor 
1830-1839 in date 
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Showing 141–160 of 2274 items

Herschel10381

From:
Thomas Emerson Headlam
To:
Margaret Brodie Herschel
Date:
[2 August 1838]
Source of text:
RS:HS 9.261
Summary:

Will reserve a room for JH at the time of the B.A.A.S. meeting.

Contributor:
John Herschel Project

Herschel10382

From:
Thomas Emerson Headlam
To:
Sir John Herschel
Date:
[2 September 1838]
Source of text:
RS:HS 9.262
Summary:

Sending results of the experiment on the lens of a large animal. Hopes he was not fatigued by the meeting.

Contributor:
John Herschel Project

Herschel1039

From:
Sir John Herschel
To:
William Henry
Date:
[9 January 1832]
Source of text:
RS:HS 25.3.3
Summary:

Comments on a letter from WH in which he discussed experiments WH had made on the infection of cowpox, typhoid, and scarlatina.

Contributor:
John Herschel Project

Herschel1040

From:
Sir John Herschel
To:
Mr. Briarly
Date:
[29 February 1832]
Source of text:
RS:HS 25.3.5
Summary:

Has received a pamphlet from B about the apportionment of boroughs in a manner to eliminate the 'rotten' boroughs; JH critiques the pamphlet, especially its attempt at mathematical logic.

Contributor:
John Herschel Project

Herschel10404

From:
Thomas Henderson
To:
Sir John Herschel
Date:
[13 January 1832]
Source of text:
RS:HS 9.284
Summary:

Spent a pleasant time with G. B. Airy at Cambridge. The 'Melville' ship sails from Portsmouth on Thursday and he has been promised a passage to the Cape in it. Proposes to call on him tomorrow to discuss certain things.

Contributor:
John Herschel Project

Herschel10406

From:
Thomas Henderson
To:
Sir John Herschel
Date:
[5 April 1833]
Source of text:
RS:HS 9.286
Summary:

Has taken some time to consider the climate at the Cape in response to JH's request. Gives details of the climate, suitability of site for observatory, and general conditions at the Cape. There is a reasonable library at Cape Town.

Contributor:
John Herschel Project

Herschel10407

From:
Thomas Henderson
To:
Sir John Herschel
Date:
[27 April 1833]
Source of text:
RS:HS 9.287
Summary:

Has resolved to leave the Cape and soon after JH receives this letter he hopes to be in England. Will bring the barometer and the exterior thermometer. Saw Dr. Duncan Stewart yesterday.

Contributor:
John Herschel Project

Herschel10408

From:
Thomas Henderson
To:
Sir John Herschel
Date:
[12 August 1833]
Source of text:
RS:HS 9.288
Summary:

Has written two letters from the Cape. Arrived three days ago. Will shortly proceed to Edinburgh. Has left the barometer on the ship. Compared this barometer with the one at St. Helena.

Contributor:
John Herschel Project

Herschel10409

From:
Thomas Henderson
To:
Sir John Herschel
Date:
[6 September 1833]
Source of text:
RS:HS 9.289
Summary:

Proceeds to Edinburgh in the course of a few days and intends to compute the star declinations. Has some suggestions to offer before JH sails for the Cape. Would be glad to hear of the comparison of the barometer and thermometer. Left a [Thomas] Jones thermometer at the Cape.

Contributor:
John Herschel Project

Herschel1041

From:
Sir John Herschel
To:
Richard Potter
Date:
[22 April 1832]
Source of text:
RS:HS 25.3.6
Summary:

Responds to RP's concerns about the nature of light and the interpretation of some interference experiments. JH believes that the undulatory theory of light is the best supported by the experiments at this time.

Contributor:
John Herschel Project

Herschel10410

From:
Thomas Henderson
To:
Sir John Herschel
Date:
[3 October 1833]
Source of text:
RS:HS 9.290
Summary:

Memorandum on the site of N. L. Lacaille's Observatory.

Contributor:
John Herschel Project

Herschel10411

From:
Thomas Henderson
To:
Sir John Herschel
Date:
[16 June 1834]
Source of text:
RS:HS 9.291
Summary:

Is happy to hear of his safe arrival at the Cape and comfortably housed. Comments on two stars Alpha1 and Alpha2 Centauri.

Contributor:
John Herschel Project

Herschel10412

From:
Thomas Henderson
To:
Sir John Herschel
Date:
[1 August 1835]
Source of text:
RS:HS 9.292
Summary:

Received his February letter and is pleased to hear that things are progressing. No one has seen Halley's Comet yet. His work on the reduction of the Cape observations is proceeding slowly. Had no idea he gave such a poor impression of the Cape climate. David Brewster and J. D. Forbes have not visited Edinburgh recently.

Contributor:
John Herschel Project

Herschel10413

From:
Thomas Henderson
To:
Sir John Herschel
Date:
[29 November 1836]
Source of text:
RS:HS 9.294
Summary:

Pleased to hear that all is progressing well with JH. Regrets the discordance in the Parramatta Right Ascensions. Observed an occultation of Gamma Virginis in April. Has seen the method of determining the nadir point of a circle. Cape reductions suffered a setback last season as he had to lecture on mathematics.

Contributor:
John Herschel Project

Herschel10414

From:
Thomas Henderson
To:
Sir John Herschel
Date:
[7 April 1837]
Source of text:
RS:HS 9.295
Summary:

Sending a few lines via Captain Basil Hall. Has sent his observations of the refractions of stars at lower altitudes than 5 degrees, to the R.A.S. Started work on determining the position of the stars from Baily's zodiacal catalogue. Government has authorized the printing of the observations.

Contributor:
John Herschel Project

Herschel1042

From:
Sir John Herschel
To:
Wilhelm Struve
Date:
[12 May 1832]
Source of text:
RS:HS 25.3.7
Summary:

Is now committed to the Cape journey, and will be occupied most of the time till then with the reduction of JH's nebulae observations. Comments on several other astronomical matters. [Letter is finished on board a steam packet on the way to Hamburg to visit JH's aunt, Caroline, dated 1832-6-9.]

Contributor:
John Herschel Project

Herschel1043

From:
Sir John Herschel
To:
Jacques Babinet
Date:
[12 September 1832]
Source of text:
RS:HS 25.3.9
Summary:

Responds to JB's 1832-8-25 with comments about the optical properties of tourmaline. JH also talks about his astronomical work, including the collimator on his telescope and his double star work.

Contributor:
John Herschel Project

Herschel1044

From:
Sir John Herschel
To:
Wilhelm Struve
Date:
[23 September 1832]
Source of text:
RS:HS 25.3.10
Summary:

Compares in detail observations of several double stars made by several astronomers, and comments on differences; JH also describes a sighting of Biela's comet.

Contributor:
John Herschel Project

Herschel1045

From:
Sir John Herschel
To:
Wilhelm Struve
Date:
[12 March 1833]
Source of text:
RS:HS 25.3.11
Summary:

The observational data from FS regarding Gamma Virginis are so significant that JH begs FS to continue to observe and send JH the results. Comments on a number of other astronomical observational matters.

Contributor:
John Herschel Project

Herschel1046

From:
Sir John Herschel
To:
M. Perrey
Date:
[16 March 1833]
Source of text:
RS:HS 25.3.12
Summary:

Gently rejects MP's offer to accompany JH to the Cape to act as JH's assistant. JH claims the voyage to be a 'pure family party of pleasure,' and if astronomy can not be well practiced at the Cape, the family may go on to India to visit the relatives of JH's wife, Margaret.

Contributor:
John Herschel Project
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