Search: Charles Darwin in collection 
1860-1869::1867::07 in date 
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From:
Charles Robert Darwin
To:
Charles Lyell, 1st baronet
Date:
18 July [1867]
Source of text:
American Philosophical Society (Mss.B.D25.331)
Summary:

Chapter 12 [of Variation] finished;

too late to include information on six-fingered men. Plans for book on man [Descent].

Mentions coral reefs of Tahiti.

Discusses volcanic islands; volcanoes of the Cordillera.

Contributor:
Darwin Correspondence Project