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1860-1869::1865::06 in date 
Archives of the New York Botanical Garden in repository 
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From:
Charles Robert Darwin
To:
William Bernhard Tegetmeier
Date:
2 June [1865]
Source of text:
Archives of the New York Botanical Garden (Charles Finney Cox Collection)
Summary:

Has lost time through illness.

Suggests an experiment to see whether the progeny of a pigeon cross are affected by a previous impregnation.

Contributor:
Darwin Correspondence Project