Search: Herschel, John in author 
1830-1839::1836 in date 
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Showing 1–20 of 70 items

Herschel8871

From:
Sir John Herschel
To:
D. François J. Arago
Date:
[1836]
Source of text:
Comptes Rendus, 3 (1836), 505 (inc)
Summary:

Discusses the 'Moon Hoax' and JH's observations of Halley's Comet.

Contributor:
John Herschel Project

Herschel8809

From:
Sir John Herschel
To:
William Henry Fox Talbot
Date:
[1836]
Source of text:
Science Museum Talbt 1/7
Summary:

Sending WT some seeds. Had hoped to send some bulbs.

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

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

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

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

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

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

Herschel12110

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[31 January 1836]
Source of text:
RS:HS 21.196
Summary:

Sends a list of additional stars to be measured for JH to use as standards.

Contributor:
John Herschel Project

Herschel8799

From:
Sir John Herschel
To:
Francis Beaufort
Date:
[3 February 1836]
Source of text:
Science Museum Archives MS 1130
Summary:

Has been observing Halley's Comet —'altogether the most beautiful thing I ever saw in a telescope.' Comet has tripled in diameter during the last week.

Contributor:
John Herschel Project

Herschel12111

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[7 February 1836]
Source of text:
RS:HS 21.198
Summary:

About an anomaly in one of JH's lists of observations.

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

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

Herschel9237

From:
Sir John Herschel
To:
John Philip
Date:
183[6]-2-17
Source of text:
Univ. of Witwatersrand (draft: RS:HS 13.387 & 21.197)
Summary:

Comments on the papers of evidence placed before the Aborigines Committee, and expresses himself vehemently about the sin of having penal colonies.

Contributor:
John Herschel Project

Herschel3981

From:
Sir John Herschel
To:
Caroline Lucretia Herschel
Date:
[19 February 1836]
Source of text:
TxU:H/L-0581.2.b; Reel 1058
Summary:

Reports the birth of his fifth child, Alexander Stewart. Has made some excellent observations of Halley's Comet. Asks CH to inform Carl Gauss that JH has not received Gauss's magnetometer nor is JH certain of how to use it.

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

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

Herschel12112

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[21 February 1836]
Source of text:
RS:HS 21.199
Summary:

About the principles whereby the nomenclature of the constellations might be reformed.

Contributor:
John Herschel Project
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