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Questions for William Herbert   [c. 1 April 1839]

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Summary

Questions on breeding of plants: variation in established versus new varieties; predominance of wild species and old varieties when crossed with newer forms; predominance of males versus females; correlations between ease of hybridisation and tendency to vary and undergo cultivation; reversion; correlations between hybridisation and geographic distribution.

In WH’s Amaryllidaceae [1837], does he intend to say crossing is inimical to fertility?

[Sent via J. S. Henslow; note to amanuensis Syms Covington.]

Author:  Charles Robert Darwin
Addressee:  William Herbert, dean of Manchester
Date:  [c. 1 Apr 1839]
Classmark:  DAR 185: 62
Letter no:  DCP-LETT-502

To William Whewell   16 April [1839]

Summary

Thanks WW for wedding gift.

Expresses admiration for his History of the inductive sciences [1837].

Author:  Charles Robert Darwin
Addressee:  William Whewell
Date:  16 Apr [1839]
Classmark:  Trinity College, Cambridge (Add c 88: 6)
Letter no:  DCP-LETT-506

To the Secretary of the Geological Society of France   25 April 1839

Summary

Acknowledges, on behalf of the Geological Society, receipt of the Bulletin de la Société Géologique de France, vol. 9, feuilles 29, 34.

Author:  Charles Robert Darwin
Addressee:  Secretary, Soc. Géol. France
Date:  25 Apr 1839
Classmark:  Bibliothèque municipale de Versailles (Autographe Darwin)
Letter no:  DCP-LETT-507
Document type
letter (3)
Author
Darwin, C. R.[X]
Date
1839
04
01 (1)
16 (1)
25 (1)
letter