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From J. D. Hooker   [after 11 December 1854]

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List of most anomalous Leguminosae [from George Bentham].

Author:  Joseph Dalton Hooker
Addressee:  Charles Robert Darwin
Date:  [after 11 Dec 1854]
Classmark:  DAR 205.9: 391
Letter no:  DCP-LETT-1546

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
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