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From George Bentham   2 December [1856]

Summary

Cites cases of leguminous plants whose cleistogamic flowers produce more seed than perfect flowers. [See Forms of flowers, p. 326.]

Author:  George Bentham
Addressee:  Charles Robert Darwin
Date:  2 Dec [1856]
Classmark:  DAR 111: A75–6
Letter no:  DCP-LETT-11267

From W. D. Fox   19 December [1856]

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Summary

Informs CD that in his experience with peas he has never found the seed to deteriorate.

Author:  William Darwin Fox
Addressee:  Charles Robert Darwin
Date:  19 Dec [1856]
Classmark:  DAR 77: 170
Letter no:  DCP-LETT-11799

From J. D. Hooker   [early December 1856]

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Summary

Podostemaceae flowering under water.

Author:  Joseph Dalton Hooker
Addressee:  Charles Robert Darwin
Date:  [early Dec 1856]
Classmark:  DAR 100: 149
Letter no:  DCP-LETT-1966

From George Dickie   1 December 1856

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Summary

His observations on Subularia: has never seen it in flower in the air.

Author:  George Dickie
Addressee:  Charles Robert Darwin
Date:  1 Dec 1856
Classmark:  DAR 207: 16
Letter no:  DCP-LETT-2009

From T. V. Wollaston   [11 or 18 December 1856]

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Summary

Informs CD that the "dishonest mollusks" were collected in May 1855 in Porto Santo. Describes some Madeira species. Though believing in "species" more and more, these may be "mere insular modifications".

Author:  Thomas Vernon Wollaston
Addressee:  Charles Robert Darwin
Date:  [11 or 18] Dec 1856
Classmark:  DAR 205.3: 301
Letter no:  DCP-LETT-2013

From J. D. Hooker   7 December 1856

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Summary

Has done New Zealand flora calculations. Results support CD’s theory of necessity of crossing. Trees tend to have separate sexes.

Author:  Joseph Dalton Hooker
Addressee:  Charles Robert Darwin
Date:  7 Dec 1856
Classmark:  DAR 100: 113–14
Letter no:  DCP-LETT-2014

From J. D. Dana   8 December 1856

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Summary

Agassiz has informed him that the mice and rats of Mammoth Cave are American in type.

Alludes to CD’s doubt of the principle that "progress of life on the globe is parallel with the development in different tribes". Outlines his own ideas on the "unfolding of the type-idea" and its "parallelism with the law of development in the embryo".

Author:  James Dwight Dana
Addressee:  Charles Robert Darwin
Date:  8 Dec 1856
Classmark:  DAR 205.9: 378
Letter no:  DCP-LETT-2016

From H. C. Watson   [28 December 1856]

Summary

Notes on the comparative rarity of intermediate forms between species, and the varying relationships those forms may have to one or both species between which they are intermediate.

Author:  Hewett Cottrell Watson
Addressee:  Charles Robert Darwin
Date:  [28 Dec 1856]
Classmark:  DAR 98: A15–18
Letter no:  DCP-LETT-2023

From Thomas Davidson   29 December 1856

Summary

His experience confirms CD’s view that some species and even some genera of Brachiopoda are consistently more variable than others, and that such variable forms are variable in all localities and at all periods. Similarly a species that shows a lack of variability does so at all points in time and space. Discusses the causes of variability. [See Natural selection, p. 106.]

Author:  Thomas Davidson
Addressee:  Charles Robert Darwin
Date:  29 Dec 1856
Classmark:  DAR 162: 116
Letter no:  DCP-LETT-2024
Document type
letter (9)
Addressee
Darwin, C. R.[X]
Date
1856
12
01 (2)
02 (1)
07 (1)
08 (1)
11 (1)
19 (1)
28 (1)
29 (1)
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