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DCP-LETT-8977A

From:
Charles Robert Darwin
To:
Edward Frankland
Date:
12 July 1873
Source of text:
The John Rylands Library, The University of Manchester
Summary:

Seeks the assistance of a professional chemist in securing a qualitative analysis of the fluid secreted by the glands of Drosera which have the power of dissolving animal matter out of the bodies of insects. [See 8979.]

Contributor:
Darwin Correspondence Project

DCP-LETT-8979

From:
Edward Frankland
To:
Charles Robert Darwin
Date:
15 July 1873
Source of text:
DAR 164: 206
Summary:

Sends sodium carbonate for Drosera experiments. Will try to determine what the solvent is.

Contributor:
Darwin Correspondence Project
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DCP-LETT-8980A

From:
Charles Robert Darwin
To:
Edward Frankland
Date:
16 July [1873]
Source of text:
The John Rylands Library, The University of Manchester
Summary:

Thanks EF for his offer of assistance. Could the viscid secretions [in glands of Drosera] contain pepsin? Will the sodium carbonate render the testing of organic matter difficult? [See 8979.] Will send the fluid in a fortnight.

Contributor:
Darwin Correspondence Project

DCP-LETT-8981

From:
Edward Frankland
To:
Charles Robert Darwin
Date:
17 July 1873
Source of text:
DAR 164: 207
Summary:

Is going to Switzerland, so analysis of Drosera washings will be delayed. Agrees with CD that solvent is probably pepsin.

Contributor:
Darwin Correspondence Project
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DCP-LETT-8982A

From:
Charles Robert Darwin
To:
Edward Frankland
Date:
18 July [1873]
Source of text:
The John Rylands Library, The University of Manchester
Summary:

Agrees to delay sending the fluid [from the glands of Drosera] until early October. Will try suggestion about pepsin. [See 8981.]

Contributor:
Darwin Correspondence Project
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