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To J. D. Hooker   2 December [1854]

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Summary

JDH’s "grand speech" on receiving the Royal Medal.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  2 Dec [1854]
Classmark:  DAR 114: 158
Letter no:  DCP-LETT-1609

To J. D. Hooker   4 December [1854]

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Summary

Is Bentham’s list of aberrant genera biased by exclusion of genera with many species?

JDH’s belief that Aquilegia varieties are one species is consistent with their great interfertility.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  4 Dec [1854]
Classmark:  DAR 114: 159
Letter no:  DCP-LETT-1610

To J. D. Hooker   11 [December 1854]

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Summary

Debates aberrant species, e.g., Ornithorhynchus and Echidna, with JDH. CD argues they are result of extinction having removed intermediate links to allied forms.

Studying effects of disuse in wings of tame and wild ducks.

Tabulations showing that number of species in a genus is not correlated with number of genera in an order.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  11 [Dec 1854]
Classmark:  DAR 114: 148
Letter no:  DCP-LETT-1612
Document type
letter (3)
Author
Addressee
Hooker, J. D.[X]
Correspondent
Date
1854
12
02 (1)
04 (1)
11 (1)
letter