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1860-1869::1864 in date 
Walsh, B. D. in author 
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From:
Benjamin Dann Walsh
To:
Charles Robert Darwin
Date:
29 Apr – 19 May 1864
Source of text:
DAR 181: 9
Summary:

Recalls being introduced to CD when [undergraduate] at Cambridge.

Sends CD some of his pamphlets

and expresses support of Origin.

Has discovered there are "3 sexes" in the solitary Cynips as well as social insects.

Contributor:
Darwin Correspondence Project
From:
Benjamin Dann Walsh
To:
Charles Robert Darwin
Date:
7 Nov 1864
Source of text:
DAR 181: 10
Summary:

Notes Louis Agassiz’s opinions on CD’s views.

Mating and sexual organs of insects.

Contributor:
Darwin Correspondence Project