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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-10130

From:
William Adolf Ludwig (William) Marshall
To:
Charles Robert Darwin
Date:
21 Aug 1875
Source of text:
DAR 171: 49
Summary:

Doubts ostrich descended from reptiles. Its ancestors true birds. Of course, all birds descended from reptiles. Compares foetus of birds to that of reptiles.

Contributor:
Darwin Correspondence Project
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