Search: Herschel, John in correspondent 
Henderson, Thomas in correspondent 
1830-1839 in date 
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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

Herschel8677

From:
Sir John Herschel
To:
Thomas Henderson
Date:
[11 December 1832]
Source of text:
National Maritime Museum (draft: RS:HS 9.285 & C: RS:HS 25.13.3)
Summary:

Proposes to come to the Cape in the ensuing season and would be pleased to bring anything TH may require. Enquires about conditions at the Cape and suitable sites for JH's observations.

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

Herschel8667

From:
Sir John Herschel
To:
Thomas Henderson
Date:
[15 August 1833]
Source of text:
NatLibScot MS.3134, no.51
Summary:

Arranges to meet TH, probably at Slough, and also to get a barometer from TH.

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

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

Herschel3279

From:
Sir John Herschel
To:
Thomas Henderson
Date:
[20 October 1833]
Source of text:
EUL:LaII425/24
Summary:

Details about JH's upcoming voyage from Portsmouth [to Cape of Good Hope] and about an expedition going north from the Cape into Central Africa.

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
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