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Herschel1056

From:
Sir John Herschel
To:
Charles Wheatstone
Date:
[8 September 1835]
Source of text:
RS:HS 25.4.14 (C: RS:HS 25.11.1)
Summary:

Comments on CW's work on light and on the velocity of electricity. JH's ruminations lead him to the idea of motion pictures.

Contributor:
John Herschel Project

Herschel1057

From:
Sir John Herschel
To:
John Augustus Lloyd
Date:
[5 December 1835]
Source of text:
RS:HS 25.4.18
Summary:

Comments on the possible loss of some mail going to England, the longitude of Mauritius, and the tides at the Cape. Wonders if anyone was able to observe Halley's Comet during the recent solar eclipse.

Contributor:
John Herschel Project

Herschel1058

From:
Sir John Herschel
To:
John I. Taylor
Date:
[7 January 1836]
Source of text:
RS:HS 25.4.19
Summary:

Compares JT's observations of stars very favorably with most others available to JH; explains how JH had helped Thomas Maclear improve the mounting on a telescope at the Cape observatory, together with comments on other equipment.

Contributor:
John Herschel Project

Herschel1059

From:
Sir John Herschel
To:
Peter Stewart
Date:
[16 June 1836]
Source of text:
RS:HS 25.5.1
Summary:

Comments on financial arrangements for John [Stewart] together with other business matters, and asks for an estimate for printing the results of JH's Cape observations.

Contributor:
John Herschel Project

Herschel1060

From:
Sir John Herschel
To:
Roderick Impey Murchison
Date:
[15 November 1836]
Source of text:
RS:HS 25.5.3
Summary:

Some geological samples have been lost on the way to England; JH comments on his ideas of the effect of the earth's hot core on the construction of the earth's crust.

Contributor:
John Herschel Project

Herschel1061

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[30 November 1836]
Source of text:
RS:HS 25.5.4
Summary:

Comments about AD's work in mathematical functions, and then refers to JH's reductions and other astronomical matters, including the need for reform of stellar nomenclature.

Contributor:
John Herschel Project

Herschel10617

From:
James Horsburgh
To:
Sir John Herschel
Date:
[19 June 1833]
Source of text:
RS:HS 9.498
Summary:

Has sent to Francis Baily a copy of his Sailing Directions and a roll of charts. Hopes JH will point out any errors he may note.

Contributor:
John Herschel Project

Herschel10618

From:
James Horsburgh
To:
Sir John Herschel
Date:
[15 November 1834]
Source of text:
RS:HS 9.499
Summary:

Delayed acknowledging JH's letter until the return of [James?] Hudson from Derbyshire as he knew he would be interested in the atmosphere and temperature of the ocean. Comments on this and quotes a review of Captain Foster's voyages in the Athenaeum.

Contributor:
John Herschel Project

Herschel10619

From:
James Horsburgh
To:
Sir John Herschel
Date:
[19 June 1835]
Source of text:
RS:HS 9.500
Summary:

Hudson has printed JH's observations on the temperature of the oceans in the Athenaeum. Sends a chart of the east coast of China. Edward Troughton died last Friday.

Contributor:
John Herschel Project

Herschel1062

From:
Sir John Herschel
To:
Wilhelm Struve
Date:
[11 February 1838]
Source of text:
RS:HS 25.5.10
Summary:

Pleased with the observations and astronomical literature JH received from FS; JH is packing up for the return to England; comments on causes of variations in stellar magnitude and several other astronomical topics.

Contributor:
John Herschel Project

Herschel10620

From:
Sir John Herschel
To:
Luke Howard
Date:
[16 June 1839]
Source of text:
RS:HS 10.1 & 22.16
Summary:

LH's meteorological circular register was laid before the Meteorological Committee, which considers it worthy of notice. Comments on this, and would like to discuss the matter further.

Contributor:
John Herschel Project

Herschel10621

From:
Luke Howard
To:
Sir John Herschel
Date:
[11 July 1839]
Source of text:
RS:HS 10.2
Summary:

Will not be able to come to town for some time so sends answers to JH's comments on his Circular Register. Hopes JH can call to see him; then he can explain more fully.

Contributor:
John Herschel Project

Herschel10628

From:
R. W. Howard-Vyse
To:
Sir John Herschel
Date:
[15 April 1839]
Source of text:
RS:HS 10.9
Summary:

Is grateful for JH's goodness regarding the pyramids. Gives measurements of the pyramids and would be grateful for any comments JH can make regarding the significance of these measurements.

Contributor:
John Herschel Project

Herschel1063

From:
Sir John Herschel
To:
Heinrich Christian Schumacher
Date:
[19 January 1839]
Source of text:
RS:HS 25.5.11
Summary:

Compares magnitudes for some specific stars and then comments more generally on that question; JH believes he will no longer be able to observe in winter in England as he is too severely afflicted by rheumatism.

Contributor:
John Herschel Project

Herschel1064

From:
Sir John Herschel
To:
John Lindley
Date:
[26 August 1839]
Source of text:
RS:HS 25.5.15
Summary:

In response to a request, JH provides such details as he can about atmospheric and ground temperatures at the Cape; JH goes on to describe how his flowers brought from the Cape are doing.

Contributor:
John Herschel Project

Herschel1065

From:
Sir John Herschel
To:
[William Whewell]
Date:
[28 August 1839]
Source of text:
RS:HS 25.5.16
Summary:

Wishes to have mentioned to the Physical Section of the B.A.A.S. that JH has discovered that the extreme red rays [infra-red?] of the sun do not darken photographic paper, but tend to whiten it.

Contributor:
John Herschel Project

Herschel10659

From:
James Hudson
To:
Sir John Herschel
Date:
[1 December 1832]
Source of text:
RS:HS 10.32
Summary:

Sends items by F. W. Bessel and G. A. Plana. Will be dispatching boxes to various European towns next week and will be pleased to include any items from JH. His observations made recently show interesting results. Comments on these results and the influence of the bore.

Contributor:
John Herschel Project

Herschel1066

From:
Sir John Herschel
To:
[Mr. Smith?]
Date:
[5 September 1839]
Source of text:
RS:HS 25.5.17
Summary:

Is very insistent that JH receive clear title to Collingwood, with no encumbrances.

Contributor:
John Herschel Project

Herschel10660

From:
James Hudson
To:
Sir John Herschel
Date:
[30 September 1833]
Source of text:
RS:HS 10.33
Summary:

Acknowledging the receipt of two boxes of manuscripts to be held at the R.S.L. until the return of JH from the Cape.

Contributor:
John Herschel Project

Herschel10661

From:
James Hudson
To:
Sir John Herschel
Date:
[7 October 1833]
Source of text:
RS:HS 10.34
Summary:

Acknowledging receipt of tin box containing the papers of the late Sir William Herschel.

Contributor:
John Herschel Project
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