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From:
Charles Robert Darwin
To:
Joseph Dalton Hooker
Date:
27 Apr [1860]
Source of text:
DAR 261.10: 67 (EH 88206050)
Summary:

Sends list of plants with asymmetry in nectar-secreting surfaces and pistils bent in that direction. Shows insect agency so important that structure has changed. Asks for contrary or confirming examples and that request be passed on to Daniel Oliver.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Charles Lyell, 1st baronet
Date:
27 and 28 Apr 1860
Source of text:
American Philosophical Society (Mss.B.D25.209)
Summary:

Thanks CL for loan of paper by J. S. Newberry ["Notes on the ancient vegetation of N. America", Am. J. Sci. 2d ser. 29 (1860): 208–18].

Mentions reviews of the Origin.

Discusses evolution of the domestic dog, especially with respect to the views of Owen, Pallas, and Isidore Geoffroy Saint-Hilaire.

Mentions W. B. Carpenter’s views on taxonomy.

Discusses hybridisation of plants and animals.

Comments on progress in human evolution.

Contributor:
Darwin Correspondence Project