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From S. P. Woodward   [after 4 June 1856]

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Summary

Note on cases of representative shells that are not clearly either varieties or species.

Author:  Samuel Pickworth Woodward
Addressee:  Charles Robert Darwin
Date:  [after 4 June 1856]
Classmark:  DAR 205.9: 403
Letter no:  DCP-LETT-1807

From S. P. Woodward   2 May 1856

Summary

Proportion of molluscan species to genera in various periods. The difficulty of determining species increases with the number of species per genus. Identifying species within a genus is most difficult in that period in which the genus shows its greatest development.

Author:  Samuel Pickworth Woodward
Addressee:  Charles Robert Darwin
Date:  2 May 1856
Classmark:  DAR 181: 153
Letter no:  DCP-LETT-1864

From S. P. Woodward   4 June 1856

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Summary

SPW and Waterhouse agree on island faunas; gives Australia and Tasmania as examples. The "stream of migration" from Asia to Tasmania.

Looks forward eagerly to the publication of CD’s "specific" researches.

Invites CD to send his memoranda [on Manual of Mollusca].

Author:  Samuel Pickworth Woodward
Addressee:  Charles Robert Darwin
Date:  4 June 1856
Classmark:  DAR 205.3: 303
Letter no:  DCP-LETT-1889

From S. P. Woodward   15 July 1856

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Summary

Has reduced 20 Cyrena species to geographical varieties of one species, Cyrena fluminalis. Hooker is reducing Indian flora at the rate of 19 to 1.

Recommends W. H. Harvey’s Seaside book [1849] and Charles Pickering’s Races of man [1850].

Author:  Samuel Pickworth Woodward
Addressee:  Charles Robert Darwin
Date:  15 July 1856
Classmark:  DAR 205.3: 304
Letter no:  DCP-LETT-1927

From S. P. Woodward   [15 July 1856]

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Summary

Lists Lusitanian shells with wide ranges beyond that geographical province.

Antiquity and elevation of land mass is more important than latitude for the distribution of shells.

Author:  Samuel Pickworth Woodward
Addressee:  Charles Robert Darwin
Date:  [15 July 1856]
Classmark:  DAR 205.3: 305
Letter no:  DCP-LETT-1928

From S. P. Woodward   14 February 1863

Summary

Points out some errata in the Origin.

Discusses the factors producing the shape of the cells of the honeycomb.

Reports case of two varieties of musk-rat that behave very differently but are, according to Waterhouse, the same.

Author:  Samuel Pickworth Woodward
Addressee:  Charles Robert Darwin
Date:  14 Feb 1863
Classmark:  DAR 181: 154
Letter no:  DCP-LETT-3984

From S. P. Woodward   5 June 1863

Summary

Has been writing a notice of H. W. Bates’s "capital book" [Naturalist on the river Amazons (1863)].

P. M. Duncan’s coral paper [J. Geol. Soc. Lond. 29 (1863): 406–58] strengthens SPW’s belief in the general diffusion of marine forms westward in the course of time.

Author:  Samuel Pickworth Woodward
Addressee:  Charles Robert Darwin
Date:  5 June 1863
Classmark:  DAR 181: 155
Letter no:  DCP-LETT-4204
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Woodward, S. P.disabled_by_default
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Correspondent
Date
1856 (5)
1863 (2)