From:
Charles Robert Darwin
To:
Charles Harrison Blackley
Date:
9 Mar 1877
Source of text:
Yale University Medical Historical Library, Harvey Cushing / John Hay Whitney Medical Library (MMS)
Summary:
Thanks for CHB’s essay [New observations on hay-fever (1877?)]. The calculation of the weight of pollen-grains is wonderful. Suggests he consult Cross and self-fertilisation, pp. 376, 405 for information on this subject.
Contributor:
Darwin Correspondence Project
