Search: John Herschel Project in contributor 
1830-1839::1836 in date 
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Showing 81–100 of 194 items

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

Herschel1689

From:
Andrew Smith
To:
Sir John Herschel
Date:
[21 June 1836]
Source of text:
RS:HS 16.175
Summary:

Note of thanks to JH for interceding on AS's behalf.

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

Herschel2206

From:
Sir Edward Ryan
To:
Sir John Herschel
Date:
[17 December 1836]
Source of text:
RS:HS 14.450
Summary:

Introduces [Charles?] Cameron. Received angry and excited letter from Charles Babbage. Discusses barometers. Heard Herschels may be travelling to Rio de Janeiro.

Contributor:
John Herschel Project

Herschel3016

From:
Wilhelm Struve
To:
Sir John Herschel
Date:
[10 February 1836]
Source of text:
RS:HS 17.126
Summary:

Reports the death of family members. Reveals news of new Pulkowa observatory. Has completed his work on micrometer measurements, resulting in 10,500 observations. Includes lists of aspects of his works.

Contributor:
John Herschel Project

Herschel3053

From:
Adolphe Quetelet
To:
Sir John Herschel
Date:
[9 February 1836]
Source of text:
RS:HS 14.208
Summary:

Wonders if JH has received AQ's letters and works sent to the Cape. Sends more. Has been doing meteorological observations. Will send some if JH wishes. Mural circle and transit instrument finally in place. Problems with equatorial; therefore missed Halley's Comet.

Contributor:
John Herschel Project

Herschel3342

From:
James David Forbes
To:
Sir John Herschel
Date:
[14 November 1836]
Source of text:
St. Andrews LB II, 391-4 (C: RS:HS 7.291)
Summary:

Pleased to hear JH's work is progressing. Disappointed with Dr. [John] Davy's meteorological observations at Malta. Comments on other scientific news, including recent eclipse, [Andrew] Crosse's controversial artificial crystals at Bristol B.A.A.S. meeting, JF's 1832 observations in Switzerland, and William Whewell's and William Buckland's books.

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

Herschel3761

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

Reports that JH has been looking at Halley's Comet 'every night.'

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
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