Search: Herschel, John in author 
Herschel, John in correspondent 
1830-1839::1836 in date 
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Herschel12705

From:
Sir John Herschel
To:
Captain C[aldwell?]
Date:
[5 January 1836]
Source of text:
TxU:H/L-0120; Reel 1054 (C: RS:HS 25.15.1)
Summary:

Thanks for alerting JH to extraordinary hoax in New York Journal of Commerce (2 Sept. 1835). Invites [Caldwell] to visit JH at Feldhausen.

Contributor:
John Herschel Project

Herschel12837

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[20 February 1836]
Source of text:
TxU:H/L-0241; Reel 1054 (Cdraft: RS:HS 25.15.2)
Summary:

Having read John Burrow's book, JH proposes procedure for analyzing masses of data from [African] Expedition. Will volunteer to interpolate chronometer errors if TM will undertake computations.

Contributor:
John Herschel Project

Herschel12880

From:
Sir John Herschel
To:
Robert Treat Paine
Date:
[26 August 1836]
Source of text:
TxU:H/L-0291; Reel 1054
Summary:

JH's theory of meteors. Will convey to England RP's recent observations of eclipses. Received New York paper claiming discoveries in moon by JH. Invites American observers to join international system for simultaneous meteorological observations.

Contributor:
John Herschel Project

Herschel13007

From:
Sir John Herschel
To:
James Calder Stewart
Date:
[24] April 1836
Source of text:
TxU:H/L-0420; Reel 1055
Summary:

Advice on how best to survive business world of Canton. [Letter continues from Hout Bay:] Family finances. [Letter continues 9 May at Feldhausen:] Asks help in developing JH's 'Phonetic Alphabet' of Chinese language. Considers writing book for Chinese. Comments on Chinese literature and culture. JH has changed shipping agents in Cape Town. Poem by JH.

Contributor:
John Herschel Project

Herschel13561

From:
Sir John Herschel
To:
Charles Babbage
Date:
[20 February 1836]
Source of text:
9th Treatise, 202-17
Summary:

Speculates on extinction of species by natural (not miraculous) causes intermediate to Creator. JH's theory of shifting crust over Earth's surface and its subsequent transfer of pressure. Seeks geological primum mobile for volcanoes based on continual deposition and melting of strata. 'All records of former worlds must ultimately perish.'

Contributor:
John Herschel Project

Herschel1497

From:
Sir John Herschel
To:
Sir Charles Lyell
Date:
[20 February 1836]
Source of text:
APS B.D25.L.1 (C: RS:HS 25.4.20)
Summary:

Thanks CL for the gift of a new edition of CL's Principles of Geology. JH comments on a number of issues, in a very long letter, including the replacement of extinct species by other species, CL's solution of the problem of the variation of climate, and the evolution of language. JH speculates at length on the isothermal activity under the earth's crust that may result in volcanoes or the formation of new land masses, and describes a considerable number of geological examples that JH sees as supporting CL's ideas.

Contributor:
John Herschel Project

Herschel1523

From:
Sir John Herschel
To:
The Albany Institute (Albany, New York)
Date:
[30 September 1836]
Source of text:
APS B.H435p.7
Summary:

Is very thankful for the meteorological observations sent to JH, and makes some suggestions for additional and continued observations.

Contributor:
John Herschel Project

Herschel1860

From:
Sir John Herschel
To:
William Henry Harvey
Date:
[1836 ?]
Source of text:
WT 69294.1
Summary:

JH and his family went on an excursion and collected plants. JH is now sending some that survived well and asking WH to identify them.

Contributor:
John Herschel Project

Herschel1861

From:
Sir John Herschel
To:
William Henry Harvey
Date:
1836
Source of text:
WT 69294.2
Summary:

Is sending WH a plant sent earlier, but this one has a bulb attached.

Contributor:
John Herschel Project

Herschel3421

From:
Sir John Herschel
To:
James David Forbes
Date:
[15 November 1836]
Source of text:
St. Andrews 60 (C: RS:HS 21.213)
Summary:

Discusses methods of magnetic observation, JH's actinometric readings in the Cape, and the need for more physical observatories.

Contributor:
John Herschel Project

Herschel3586

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[13 February 1836]
Source of text:
TCD 1493:176
Summary:

Replies to WH's letter on 'Scotodynamics.' Cannot follow WH's analysis of velocities of vibrations and disturbances, but finds it symbolically beautiful and powerful. Notes that diploma [?] arrived and was sent to Hanover. Thanks WH on behalf of Caroline Herschel, who sent a letter acknowledging the honor bestowed on her by Royal Irish Academy.

Contributor:
John Herschel Project

Herschel3793

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[22 January 1836]
Source of text:
unknown
Summary:

Finishing his copy of the panorama taken from the summit of Paarl rock. Needs TM's star reductions as soon as possible.

Contributor:
John Herschel Project

Herschel3794

From:
Sir John Herschel
To:
Thomas Maclear
Date:
4] March [1836
Source of text:
unknown
Summary:

Thanks TM for the right ascension reductions. Saw the comet [Halley's] last night, but it was dimmer than before.

Contributor:
John Herschel Project

Herschel3795

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[1836-10]
Source of text:
unknown
Summary:

Asks for TM's barometer and thermometer readings for 20-28 September.

Contributor:
John Herschel Project

Herschel3920

From:
Sir John Herschel
To:
Thomas Maclear
Date:
8] January [1836
Source of text:
unknown
Summary:

Uncertain when they are traveling to Paarl.

Contributor:
John Herschel Project

Herschel3921

From:
Sir John Herschel
To:
Thomas Maclear
Date:
25] January [1836
Source of text:
unknown
Summary:

Invites TM to come see Halley's Comet in JH's large reflector. JH reports his observations of the comet.

Contributor:
John Herschel Project

Herschel3922

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[8 February 1836]
Source of text:
unknown
Summary:

Calculates the location of the comet [Halley's].

Contributor:
John Herschel Project

Herschel3923

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[3 March 1836]
Source of text:
unknown
Summary:

Comments concerning Francis Baily's book on John Flamsteed.

Contributor:
John Herschel Project

Herschel3924

From:
Sir John Herschel
To:
Thomas Maclear
Date:
1836-3-5/6
Source of text:
unknown
Summary:

Calculates the location of [Halley's] comet.

Contributor:
John Herschel Project

Herschel3925

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[1836-3-10/11]
Source of text:
unknown
Summary:

Star within 20 seconds of the nucleus of the comet [Halley's].

Contributor:
John Herschel Project
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