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From:
Sir John Herschel
To:
George Gabriel Stokes
Date:
[12 December 1868]
Source of text:
Cambridge University Library 7656/H721
Summary:

Returns paper on musical scales; agrees with GS's comments on A. Prazmosky's paper [see GS's 1868-12-10].

Contributor:
John Herschel Project
From:
unknown
To:
Royal Society
Date:
13 December 1868
Source of text:
MM/14/210, Royal Society
Summary:

No summary available.

Contributor:
Royal Society
From:
Sir John Herschel
To:
John Tyndall
Date:
[13 December 1868]
Source of text:
RS:HS 19.160b
Summary:

JT's paper on polarization of sky light suggests that neutral points are functions of cloud density. This verifies JH's earlier explanation of blue sky color. Incomplete polarization. Cause of blue color in water. Corrects note on W. A. Miller's observations of rainbows.

Contributor:
John Herschel Project
Text Online
From:
August Friedrich Leopold Weismann
To:
Alfred Russel Wallace
Date:
13 December 1868
Source of text:
British Library, The: BL Add. 46435 ff. 179-180
Summary:

Polymorphism in butterflies.

Contributor:
Alfred Russel Wallace Correspondence Project
From:
John Evans
To:
Charles Robert Darwin
Date:
14 Dec 1868
Source of text:
DAR 163: 36
Summary:

Apologises; CD is correct: the object his foreman found is not organic.

Contributor:
Darwin Correspondence Project
From:
John Brodie Innes
To:
Charles Robert Darwin
Date:
14 Dec 1868
Source of text:
DAR 167: 23, 23a
Summary:

Hopes Miss [Sarah Elizabeth] Wedgwood will sell part of her land for a parsonage at Down. Recounts his futile efforts to obtain land in the past.

Encloses news item about the supposed hybrid [of cow and deer].

Contributor:
Darwin Correspondence Project
From:
Sir John Herschel
To:
John Tyndall
Date:
[14 December 1868]
Source of text:
RS:HS 24.243 (C: RI 557-8)
Summary:

Thanks for paper verifying JH's prediction that explanation of blue sky color carries with it that of polarization of skylight. Involves ultimate link between chemical and analytical dynamics. Notes that 'neutral points' in sky polarization have yet to be explained; offers tentative explanation based on clues in JT's work.

Contributor:
John Herschel Project
From:
Lachlan McLean
To:
John Brodie Innes
Date:
15 Dec 1868
Source of text:
DAR 171: 16
Summary:

Describes an animal that is said to be a hybrid between a cow and a deer.

Contributor:
Darwin Correspondence Project
From:
Sir William Huggins
To:
Sir John Herschel
Date:
[15 December 1868]
Source of text:
RS:HS 10.47
Summary:

Has arranged for the last R.A.S.M.N. to be sent to him. Lieut. John Herschel has detected a fourth line in the spectrum of the Nebula in Orion.

Contributor:
John Herschel Project
Text Online
From:
Alfred Russel Wallace
To:
Francis Galton
Date:
15 December 1868
Source of text:
American Philosophical Society
Summary:

No summary available.

Contributor:
Alfred Russel Wallace Correspondence Project
From:
John Hellins
To:
Charles Robert Darwin
Date:
16 Dec 1868
Source of text:
DAR 85: B76–7, B84
Summary:

Results of his breeding have not borne out his opinion that females are more numerous in Lepidoptera [see Descent 1: 313]. Still convinced he is right, suggests only way to settle question is by controlled breeding of large numbers of each species.

Contributor:
Darwin Correspondence Project
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From:
Charles Robert Darwin
To:
John Brodie Innes
Date:
16 Dec 1868
Source of text:
American Philosophical Society (Mss.B.D25.)
Summary:

Has received JBI’s two letters; agrees with him, but does not know what to do about [the alleged misconduct of] John Robinson. Reports in a long postscript on vain efforts to confirm rumours. Suggests JBI come to Down to see how affairs stand.

Contributor:
Darwin Correspondence Project
From:
D. McNeill
To:
Sir John Herschel
Date:
[17 December 1868]
Source of text:
RS:HS 13.13
Summary:

Will be sending some Pyretheum roseum and some birdlime with instructions for their use. Wrote a few lines to JH's son.

Contributor:
John Herschel Project
From:
Thomas Barbot Beale
To:
Charles Robert Darwin
Date:
17 Dec [1868 or later]
Source of text:
DAR 160: 102
Summary:

On why it is said Indian elephants do not breed in captivity; mating habits of male so violent as to require restraint.

Contributor:
Darwin Correspondence Project
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From:
Charles Robert Darwin
To:
J. Noordhoek Hegt
Date:
18 Dec 1868
Source of text:
Stadsarchief Amsterdam (395: 614)
Summary:

Thanks for information about the spurs in the young of Pavo muticus and Pavo cristatus.

Contributor:
Darwin Correspondence Project
From:
Thomas Henry Huxley
To:
Charles Robert Darwin
Date:
18 Dec 1868
Source of text:
DAR 166: 316
Summary:

Sends letter [from Haeckel?] opened by mistake.

August Schleicher a great loss.

Contributor:
Darwin Correspondence Project
From:
John Brodie Innes
To:
Charles Robert Darwin
Date:
18 Dec 1868
Source of text:
DAR 167: 24
Summary:

Has forwarded a veterinary surgeon’s description of the supposed hybrid [of cow and deer, see 6504]. A neighbour who has seen it is convinced it is genuine.

JBI can do no more about John Robinson.

Contributor:
Darwin Correspondence Project
Text Online
From:
Joseph Hooker
To:
Ferdinand von Mueller
Date:
18 December 1868
Source of text:
RB MSS M3, Library, Royal Botanic Gardens Melbourne
Summary:

No summary available.

Contributor:
Correspondence of Ferdinand von Mueller Project
From:
Charles Robert Darwin
To:
Ernst Philipp August (Ernst) Haeckel
Date:
20 Dec 1868
Source of text:
Ernst-Haeckel-Haus (Bestand A-Abt. 1: 1–52/21)
Summary:

Concerning death of August Schleicher.

Contributor:
Darwin Correspondence Project
Text Online
From:
George Bentham
To:
Ferdinand von Mueller
Date:
21 December 1868
Source of text:
RB MSS M4, Library, Royal Botanic Gardens, Melbourne
Summary:

No summary available.

Contributor:
Correspondence of Ferdinand von Mueller Project