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From ?   6 April 1868

Summary

Gives details of some points that occurred to him while reading Variation, including observations on horses, cattle, silkworms, and hereditary baldness and disease.

Author:  Unidentified
Addressee:  Charles Robert Darwin
Date:  6 Apr 1868
Classmark:  DAR 159: 139
Letter no:  DCP-LETT-6097

From A. R. Wallace   28 April [1868]

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Summary

Various topics related to sexual selection: sexual differences, sexual preferences, coloration.

Author:  Alfred Russel Wallace
Addressee:  Charles Robert Darwin
Date:  28 Apr [1868]
Classmark:  DAR 84.1: 120–4
Letter no:  DCP-LETT-6144

From J. J. Weir   28 April – 4 May 1868

Summary

Observations on root-climbers. Variegated and arborescent varieties of Hedera.

[CD’s notes are for his reply, 6165.]

Author:  John Jenner Weir
Addressee:  Charles Robert Darwin
Date:  28 Apr – 4 May 1868
Classmark:  DAR 181: 77
Letter no:  DCP-LETT-6145

From George Bentham   30 April 1868

Summary

Discusses Hildebrand

and criticises Delpino.

Asks to borrow C. K. Sprengel’s Entdeckte Geheimniss der Natur [1793].

Botanists have no explanation of the case of Viola odorata and other showy flowers being sterile while inconspicuous ones bear seed.

Author:  George Bentham
Addressee:  Charles Robert Darwin
Date:  30 Apr 1868
Classmark:  DAR 160: 161
Letter no:  DCP-LETT-6147

From W. E. Darwin   [5 and 8? April 1868]

Summary

Langstaff has seen no trace of blushing on the body.

Author:  William Erasmus Darwin
Addressee:  Charles Robert Darwin
Date:  5 and 8 Apr 1868
Classmark:  DAR 162: 81; Cornford Family Papers (DAR 275: 34)
Letter no:  DCP-LETT-6149

From J. J. Weir   [14 April 1868]

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Summary

Starlings find new mates readily. Nesting in threes common.

Recognition of song by birds.

Author:  John Jenner Weir
Addressee:  Charles Robert Darwin
Date:  [14 Apr 1868]
Classmark:  DAR 84.1: 88–9
Letter no:  DCP-LETT-6152

From Charles Langstaff   [after 22? April 1868]

Summary

Describes the appearance of the nose in crying.

Author:  Charles Langstaff
Addressee:  Charles Robert Darwin
Date:  [after 22? Apr 1868]
Classmark:  DAR 170: 1
Letter no:  DCP-LETT-7413

From J. J. Weir   20 April 1868

Summary

Instinct in birds; nest-building.

Inheritance of acquired characters.

Author:  John Jenner Weir
Addressee:  Charles Robert Darwin
Date:  20 Apr 1868
Classmark:  DAR 181: 76
Letter no:  DCP-LETT-6130

From Henry Holland   20 April [1868]

Summary

Sends CD a copy of a book he has had printed mainly for the interest of his children and grandchildren [later published as Recollections of past life (1872)].

Author:  Henry Holland
Addressee:  Charles Robert Darwin
Date:  20 Apr [1868]
Classmark:  DAR 166: 250
Letter no:  DCP-LETT-6131

From H. W. Bates   20 April 1868

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Summary

In addition to the drawing of a caterpillar which CD intends to use,

HWB sends information on differences of colour and pattern between the sexes of species of Papilio.

Argynnis diana and A. sagana have females that are brightly coloured, but these may be cases of protective mimicry.

Author:  Henry Walter Bates
Addressee:  Charles Robert Darwin
Date:  20 Apr 1868
Classmark:  DAR 82: A42–3
Letter no:  DCP-LETT-6132

From John Hellins   20 April 1868

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Summary

Gives the evidence on which he relied for his view, which CD thinks is erroneous, of proportion of sexes in Lepidoptera.

Author:  John Hellins
Addressee:  Charles Robert Darwin
Date:  20 Apr 1868
Classmark:  DAR 85: B71–75, B79–82
Letter no:  DCP-LETT-6133

From George Bentham   [before 22 April 1868]

Summary

Has studied Variation with interest.

Cannot quite follow CD on reversion and Pangenesis,

but is amazed at CD’s observations and method.

Comments on varieties of asses, kidney beans, and artichokes.

Author:  George Bentham
Addressee:  Charles Robert Darwin
Date:  [before 22 Apr 1868]
Classmark:  DAR 160: 160
Letter no:  DCP-LETT-6134

From W. E. Darwin   [22? April 1868]

Summary

C. L. Langstaff on action of muscles in crying. He believes the primary object of the contraction of the orbicularis is to protect the eye from blood.

Blushing on the body.

Author:  William Erasmus Darwin
Addressee:  Charles Robert Darwin
Date:  [22? Apr 1868]
Classmark:  DAR 162: 83, 80, 80/1
Letter no:  DCP-LETT-6137

From Henry Doubleday   22 April 1868

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Summary

On proportion of sexes;

coloration of sexes in Lepidoptera.

Sexual attraction of female Saturnia carpini.

Author:  Henry Doubleday
Addressee:  Charles Robert Darwin
Date:  22 Apr 1868
Classmark:  DAR 82: A9–10
Letter no:  DCP-LETT-6139

From Fritz Müller   22 April 1868

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Summary

His opinion of Pangenesis.

On relative proportion of sexes in marine animals [sthg missing!?] Crustacea.

Sexual differences.

Music of Cicadae.

Author:  Johann Friedrich Theodor (Fritz) Müller
Addressee:  Charles Robert Darwin
Date:  22 Apr 1868
Classmark:  DAR 86: A85–6; Möller 1915–21, 2: 140; Darwin Library–CUL (tipped into CD’s copy of F. Müller 1864a)
Letter no:  DCP-LETT-6140

From Gerolamo Boccardo   23 April 1868

Summary

Thanks CD for gift of Variation.

GB sent copies of his Fisica del globo [1868] to Lyell and the presidents of British scientific societies but has received no acknowledgment; asks CD to check that they received the work. Could CD arrange for a notice of the book to appear in England?

Author:  Gerolamo Boccardo
Addressee:  Charles Robert Darwin
Date:  23 Apr 1868
Classmark:  DAR 160: 233
Letter no:  DCP-LETT-6142

From W. E. Darwin   [13 April 1868]

Summary

Action of facial muscles at onset of crying.

Author:  William Erasmus Darwin
Addressee:  Charles Robert Darwin
Date:  [13 Apr 1868]
Classmark:  DAR 162: 98
Letter no:  DCP-LETT-5965

From W. E. Darwin   [7–15 April 1868]

Summary

Langstaff has never seen the platysma act, and he believes it to be rudimentary in humans.

Author:  William Erasmus Darwin
Addressee:  Charles Robert Darwin
Date:  [7–15 Apr 1868]
Classmark:  DAR 162: 80/4
Letter no:  DCP-LETT-6076

From Frederick F. Geach   April 1868

Summary

Sends expanded answers [to Queries about expression], in view of CD’s statement that his first list had not been sufficiently explanatory. Is pleased that some answers confirmed CD’s views [see Expression, passim].

Author:  Frederick F. Geach
Addressee:  Charles Robert Darwin
Date:  Apr 1868
Classmark:  DAR 165: 23
Letter no:  DCP-LETT-6077

From J. J. Weir   [before 28 April] 1868

Summary

Proportion of sexes in chaffinches.

Pugnacity of blackbirds and robins.

Harrison Weir reports up to nine eggs in starling nests.

Newspaper report of a sheep born with its owner’s brand.

Author:  John Jenner Weir
Addressee:  Charles Robert Darwin
Date:  [before 28 Apr] 1868
Classmark:  DAR 86: C1–2, DAR 84.1: 73–4
Letter no:  DCP-LETT-6078
Document type
letter (55)
Addressee
Darwin, C. R.[X]
Date
1868
04
01 (3)
02 (2)
03 (5)
04 (1)
05 (3)
06 (3)
07 (5)
08 (5)
10 (1)
11 (1)
13 (3)
14 (3)
15 (1)
16 (1)
17 (2)
18 (1)
20 (4)
22 (5)
23 (1)
25 (1)
28 (3)
30 (1)
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