Search: Ogle, William in author 
1870-1879::1876::07 in date 
Darwin, C. R. in addressee 
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From:
William Ogle
To:
Charles Robert Darwin
Date:
23 July 1876
Source of text:
DAR 77: 164–5
Summary:

Recounts his observations on the different ways bees perforate flowers of white and blue varieties of monkshood. [See Cross and self-fertilisation, p 428.]

Contributor:
Darwin Correspondence Project
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