Search: Bates, H. W. in correspondent 
Darwin, C. R. in correspondent 
1860-1869::1868 in date 
American Philosophical Society in repository 
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From:
Charles Robert Darwin
To:
Henry Walter Bates
Date:
11 Feb [1868]
Source of text:
American Philosophical Society (Mss.B.D25.)
Summary:

Asks about proportions of male to female insects.

Contributor:
Darwin Correspondence Project