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From:
Charles Lyell, 1st baronet
To:
Charles Robert Darwin
Date:
[after 3 Oct 1860]
Source of text:
DAR 205.9: 397
Summary:

CD would have carried the public more if he had explained adaptations by multiple causes, some unknown and some well known, i.e., natural selection.

Discusses Hooker’s views of extinction on St Helena.

Work on antiquity of man suspended.

Stopped by 11th edition of Principles of geology [1872].

Contributor:
Darwin Correspondence Project
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From:
Charles Lyell, 1st baronet
To:
Charles Robert Darwin
Date:
6 Oct 1860
Source of text:
The University of Edinburgh Centre for Research Collections (Lyell collection Coll-203/A3/7: 22)
Summary:

Wonders why the coracoid bone in the flightless Apteryx is so large when the clavicles are reduced. The clavicles are even separate in the ostrich. The large coracoid in reptiles is explained by the connection to the forelimbs.

Contributor:
Darwin Correspondence Project