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Herschel4092

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[21 June 1839]
Source of text:
Cape Archives/Maclear Papers File 100
Summary:

J. C. Ross goes to Cape; will establish the proposed Magnetic Observatory for three years. TM should seek a site for the Magnetic Observatory.

Contributor:
John Herschel Project

Herschel11105

From:
C. A. Jensen
To:
Sir John Herschel
Date:
[24 June 1839]
Source of text:
RS:HS 10.442
Summary:

Will be leaving London on 16 July and would like to meet JH at some convenient time to carry out H. C. Oersted's commission.

Contributor:
John Herschel Project
Text Online

Faraday1184

From:
Dominique François Jean Arago
To:
Michael Faraday
Date:
24 June 1839
Source of text:
IEE MS SC 2
Summary:

No summary available.

Contributor:
Faraday Project
Text Online

Faraday1182a

From:
Michael Faraday
To:
John Huxtable
Date:
24 June 1839
Source of text:
Keith Stait-Gardner
Summary:

No summary available.

Contributor:
Faraday Project

Herschel8822

From:
Sir John Herschel
To:
William Henry Fox Talbot
Date:
[24 June 1839]
Source of text:
Science Museum Talbt 1/19 (ACCS: RS:HS 25.5.13 & C: TxU:H/L-0476; Reel 1055)
Summary:

Admires L. J. M. Daguerre's process, but hopes to see paper become dominant medium for photographs. Describes new paper JH developed. [Letter continues 6 July.] Experiment with fixed lines in chemical spectra; shows sensitivity of ultraviolet light.

Contributor:
John Herschel Project

RS-MM-000470

From:
Edward Joshua Cooper
To:
Thomas Romney Robinson
Date:
25 June 1839
Source of text:
MM/9/50, Royal Society
Summary:

No summary available.

Contributor:
Royal Society

Herschel4979

From:
Sir John Herschel
To:
D. François J. Arago
Date:
[25 June 1839]
Source of text:
RS:HS 1.362 & 22.18
Summary:

Regarding L. J. M. Daguerre's photographic experiments.

Contributor:
John Herschel Project

Herschel5583

From:
Friedrich Wilhelm Bessel
To:
Sir John Herschel
Date:
[26 June 1839]
Source of text:
RS:HS 4.73
Summary:

Sending JH some writings on geodesic measurements; reports the second measurement of annual parallax of 61 Cygni; comments on some other observations.

Contributor:
John Herschel Project

DCP-LETT-523

From:
Charles Robert Darwin
To:
William Herbert, dean of Manchester
Date:
26 June 1839
Source of text:
DAR 185: 65–6
Summary:

CD is led to believe there are no true permanently inbreeding, sexually reproducing beings. Thanks for replies to breeding questions.

Asks for clarification of Hippeastrum crosses: is selfing or crossing with individual of same species intended and was increased fertility due to constitution of foreign parent or due to the pollen coming from another plant? Has WH known any hybrid or mongrel to revert or to vary in a manner unlikely to be effect of soil?

Sends Journal of researches.

Contributor:
Darwin Correspondence Project
thumbnail

Herschel3987

From:
Sir John Herschel
To:
Caroline Lucretia Herschel
Date:
[26 June 1839]
Source of text:
TxU:H/L-0584.4.b; Reel 1058
Summary:

Has enclosed with the letter 'a letter sketch of the 40 feet [telescope] (as it now stands) made without hands, by Photography.'

Contributor:
John Herschel Project

DCP-LETT-524

From:
William Herbert, dean of Manchester
To:
Charles Robert Darwin
Date:
[c. 27 June 1839]
Source of text:
DAR 185: 67
Summary:

Rejects necessity of outbreeding and any general law of reversion.

Describes further experiments with Hippeastrum showing greater fertility with foreign pollen than with individual’s own pollen or with pollen from another individual of same species.

Does not believe CD’s questions about reversion can be answered in present state of knowledge.

Contributor:
Darwin Correspondence Project
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RS-MM-000735

From:
W E Shuckard, Royal Society Library
To:
J W Lubbock
Date:
27 June 1839
Source of text:
MM/12/55, Royal Society
Summary:

No summary available.

Contributor:
Royal Society

Herschel4199

From:
Andries Stockenström
To:
Margaret Brodie Herschel
Date:
[28 June 1839]
Source of text:
RS:HS 17.17
Summary:

Thanks JH and MH for their support. Admits that before leaving the Cape he told the governor that he had no intention of returning. Ascribes difficulties of his term as Lieutenant Governor to problems inherent in having a military man in office.

Contributor:
John Herschel Project

Herschel2763

From:
Edward Sabine
To:
Sir John Herschel
Date:
[28 June 1839]
Source of text:
RS:HS 15.43
Summary:

Supports furnishing a wooden building at St. Helena despite the high temperatures of the tropical climate. Considers the expenses involved.

Contributor:
John Herschel Project

Herschel10552

From:
Henry Holland
To:
Sir John Herschel
Date:
[28 June 1839]
Source of text:
RS:HS 9.429
Summary:

Sending HH's Medical Notes and Reflections (1839).

Contributor:
John Herschel Project

Herschel2956

From:
Sir John Herschel
To:
Adolphe Quetelet
Date:
[29? June? 1839]
Source of text:
Académie belgique: #13
Summary:

JH's brother-in-law John Stewart, who is delivering this letter, seeks admission to a printing establishment. Asks AQ to aid JS. Lists recently received letters. Glad that AQ has [C. F.] Gauss's apparatus. Discusses an experiment in photography.

Contributor:
John Herschel Project

Herschel4363

From:
Sir John Herschel
To:
Andries Stockenström
Date:
[30 June 1839]
Source of text:
RS:HS 17.18 (C: RS:HS 22.19)
Summary:

Discusses the tensions between AS and Cape Governor George Napier.

Contributor:
John Herschel Project

DCP-LETT-524F

From:
Charles Robert Darwin
To:
Thomas Green
Date:
[after 30 June 1839]
Source of text:
Bonhams, New York (dealers) (21 September 2015)
Summary:

Returns proof sheets and requests revises. Gives his opinion of Mr Walkers’s work.

Contributor:
Darwin Correspondence Project
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