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DCP-LETT-9535

From:
Charles Robert Darwin
To:
Frans Cornelis (Franciscus Cornelius) Donders
Date:
7 July 1874
Source of text:
DAR 143: 417
Summary:

Asks about the effect of atropine on the eye. Is interested in parallel case: influence of phosphate of ammonia on glands of Drosera.

Contributor:
Darwin Correspondence Project

DCP-LETT-9545

From:
Frans Cornelis (Franciscus Cornelius) Donders
To:
Charles Robert Darwin
Date:
12 July 1874
Source of text:
DAR 58.1: 79–80
Summary:

On hearing of CD’s work with Drosera, tells of his experiment showing extreme sensitivity of the iris of a dog’s eye to atropine. [See Insectivorous plants, p. 173.]

Contributor:
Darwin Correspondence Project
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DCP-LETT-9547

From:
Charles Robert Darwin
To:
Frans Cornelis (Franciscus Cornelius) Donders
Date:
15 July 1874
Source of text:
American Philosophical Society (Mss.B.D25.)
Summary:

Discusses effect of atropine solution on eye,

and effect of phosphate of ammonia solution on gland of Drosera.

Would like to see work by T. W. Engelmann and possibly one by Dr De Ruyter.

Contributor:
Darwin Correspondence Project
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