Search: Darwin, C. R. in addressee 
Cohn, F. J. in author 
1870-1879::1875::08 in date 
Cambridge University Library in repository 
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From:
Ferdinand Julius Cohn
To:
Charles Robert Darwin
Date:
21 Aug 1875
Source of text:
DAR 161: 200
Summary:

Acknowledges presentation copy of Insectivorous plants.

Studying Drosera on vacation in Bohemia. Thinks CD has erred in considering "aggregation" to have occurred in the protoplasm. Suggests it is result of exosmosis of vacuole.

Contributor:
Darwin Correspondence Project
From:
Ferdinand Julius Cohn
To:
Charles Robert Darwin
Date:
28 Aug 1875
Source of text:
DAR 86: B3–4
Summary:

Clarifies his thoughts on "aggregation" in Drosera.

Contributor:
Darwin Correspondence Project
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