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Cohn, F. J. in correspondent 
1870-1879::1875::08 in date 
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DCP-LETT-10131

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

DCP-LETT-10134A

From:
Charles Robert Darwin
To:
Ferdinand Julius Cohn
Date:
24 Aug 1875
Source of text:
DAR 185: 99
Summary:

Responds to FJC’s criticism regarding "aggregation" as it occurs in protoplasm [see 10131].

Contributor:
Darwin Correspondence Project
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DCP-LETT-10137

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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