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Tyler, D. F. in correspondent 
1870-1879::1872 in date 
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From:
Daniel F Tyler
To:
Charles Robert Darwin
Date:
15 Aug 1872
Source of text:
DAR 88: 181–2
Summary:

Parallel quotations from Benjamin Franklin and Descent about absorption of heat by different colours; applies to winter and summer plumage of birds.

Reasoning power in dogs.

Contributor:
Darwin Correspondence Project
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