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From Edward Hewitt   18 December 1857

Summary

Hybrid varieties of pheasant and common fowl. Reply to CD queries.

Author:  Edward Hewitt
Addressee:  Charles Robert Darwin
Date:  18 Dec 1857
Classmark:  DAR 166: 196
Letter no:  DCP-LETT-1614

From William Henry Harvey   3 January 1857

Summary

Sexes of algae.

Author:  William Henry Harvey
Addressee:  Charles Robert Darwin
Date:  3 Jan 1857
Classmark:  DAR 166: 115
Letter no:  DCP-LETT-2035

From Richard Hill   10 January 1857

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Summary

Will attend to any subject in Jamaica about which CD wants information.

Crithagra brasiliensis and canary refused to pair.

A collection of Jamaican land Mollusca will be presented to the British Museum.

Hurricanes are a considerable influence on diffusion of birds and insects.

Author:  Richard Hill
Addressee:  Charles Robert Darwin
Date:  10 Jan 1857
Classmark:  DAR 205.2: 237
Letter no:  DCP-LETT-2038

From Charles Lyell   [16 January 1857]

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Summary

Enumerates fossil mammals known in Secondary strata.

Lack of angiosperm plants in rocks older than Chalk is no reason to anticipate rarity of warm-blooded quadrupeds.

Author:  Charles Lyell, 1st baronet
Addressee:  Charles Robert Darwin
Date:  [16 Jan 1857]
Classmark:  DAR 205.9: 394
Letter no:  DCP-LETT-2039

From Henry Doubleday   26 January 1857

Summary

Sends specimens of Tortrix, which illustrate the extraordinary variation of markings in two or three species. In every family of Lepidoptera there seem to be species extremely prone to vary and in some localities they vary more than in others.

Author:  Henry Doubleday
Addressee:  Charles Robert Darwin
Date:  26 Jan 1857
Classmark:  DAR 162: 235
Letter no:  DCP-LETT-2044

From Henry Doubleday   5 February 1857

Summary

The variations of Peronea caused A. H. Haworth and J. F. Stephens to create 30 or 40 species based on colour and markings. HD was first to be convinced these would be reduced to two.

Discusses species that closely resemble one another;

cites species that differ in variation in different localities;

in some double-brooded species the broods differ markedly in size and colour.

Encloses his list of varieties of Peronea.

Author:  Henry Doubleday
Addressee:  Charles Robert Darwin
Date:  5 Feb 1857
Classmark:  DAR 162: 236
Letter no:  DCP-LETT-2047

From Asa Gray   16 February 1857

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Summary

Discusses the ranges of alpine species in U. S. and considers the possible migration routes of such species from Europe.

Lists those U. S. genera which he considers protean and describes the U. S. character of some genera which are protean in Europe.

Describes how he distinguishes introduced and aboriginal stocks of the same species.

Author:  Asa Gray
Addressee:  Charles Robert Darwin
Date:  16 Feb 1857
Classmark:  DAR 165: 96
Letter no:  DCP-LETT-2053

From Victor de Robillard    26 February 1857

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Summary

The species of Mollusca at Mauritius are almost all different from those of surrounding islands, which confirms the belief that the islands were elevated from the ocean rather than separated from the continent by volcanic action.

Author:  Jean Aimé Victor (Victor) de Robillard
Addressee:  Charles Robert Darwin
Date:  26 Feb 1857
Classmark:  DAR 205.3: 287
Letter no:  DCP-LETT-2059

From H. C. Watson   10 March 1857

Summary

HCW is trying to define what CD means by "variable" genera.

Author:  Hewett Cottrell Watson
Addressee:  Charles Robert Darwin
Date:  10 Mar 1857
Classmark:  DAR 181: 35
Letter no:  DCP-LETT-2063

From Richard Hill   12 March 1857

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Summary

Comments on transport of ducks to Jamaica by hurricanes,

fish feeding on seeds,

and sterility of birds in captivity.

Author:  Richard Hill
Addressee:  Charles Robert Darwin
Date:  12 Mar 1857
Classmark:  DAR 205.2: 238
Letter no:  DCP-LETT-2064

From James Tenant   31 March 1857

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Summary

Sends account of his successful experiments in feeding wheat seeds to minnows.

Author:  James Tenant
Addressee:  Charles Robert Darwin
Date:  31 Mar 1857
Classmark:  DAR 205.2: 257
Letter no:  DCP-LETT-2069

From Hensleigh Wedgwood   [before 29 September 1857]

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Summary

Suggests CD use the common origin of the French "chef" and the English "head" or "évêque" and "bishop" to illustrate the parallels between extinction and transitional forms in language and palaeontology [see Natural selection, p. 384].

Author:  Hensleigh Wedgwood
Addressee:  Charles Robert Darwin
Date:  [before 29 Sept 1857]
Classmark:  DAR 48: A80–1
Letter no:  DCP-LETT-2070

From Edwards Crisp   4 April 1857

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Summary

Reports on wheat in the stomach of fish he caught.

Author:  Edwards Crisp
Addressee:  Charles Robert Darwin
Date:  4 Apr 1857
Classmark:  DAR 205.2: 221
Letter no:  DCP-LETT-2071

From J. D. Hooker   [11 April 1857]

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Summary

JDH cites W. H. Harvey’s observations on Fucus and David Don’s on Juncus as examples of variations that are independent of climate. There are many such cases. Gives his working scheme for categorising variation.

Author:  Joseph Dalton Hooker
Addressee:  Charles Robert Darwin
Date:  [11 Apr 1857]
Classmark:  DAR 104: 198–201
Letter no:  DCP-LETT-2074

From T. V. Wollaston   [12 April 1857]

Summary

Lists groups of insects absent from the Madeiran fauna.

Author:  Thomas Vernon Wollaston
Addressee:  Charles Robert Darwin
Date:  [12 Apr 1857]
Classmark:  DAR 181: 139
Letter no:  DCP-LETT-2076

From George Robert Waterhouse   14 April 1857

Summary

Has found no reference to construction of bees’ cells in works referred to by CD. Describes cell of Osmia atricapilla. Hive-bees’ cell was described at Entomological Society.

Author:  George Robert Waterhouse
Addressee:  Charles Robert Darwin
Date:  14 Apr 1857
Classmark:  DAR 181: 21
Letter no:  DCP-LETT-2078

From James Tenant   23 April 1857

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Summary

Fish will take both sorts of seeds sent by CD, but will not take oats.

Author:  James Tenant
Addressee:  Charles Robert Darwin
Date:  23 Apr 1857
Classmark:  DAR 205.2: 258
Letter no:  DCP-LETT-2081

From J. D. Dana   27 April 1857

Summary

In reply to CD’s query [see 2072], JDD describes what little is known about the crustacea of the Antarctic and southern lands.

Knows of no species of the cold temperate south identical with those of the cold temperate north.

Author:  James Dwight Dana
Addressee:  Charles Robert Darwin
Date:  27 Apr 1857
Classmark:  DAR 162: 39
Letter no:  DCP-LETT-2083

From James Hunt   [before 29 December 1857]

Summary

Birds that have been hybridised.

Author:  James Hunt
Addressee:  Charles Robert Darwin
Date:  [before 29 Dec 1857]
Classmark:  DAR 166: 281
Letter no:  DCP-LETT-2096

From Asa Gray   1 June 1857

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Summary

Comments on species with disjoined ranges; does not feel, despite CD’s expectations, that they tend to belong to small families.

Gives the proportion of U. S. trees in which the sexes are separate [see Natural selection, p. 62].

Author:  Asa Gray
Addressee:  Charles Robert Darwin
Date:  1 June 1857
Classmark:  DAR 8: 47bA
Letter no:  DCP-LETT-2098
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