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DCP-LETT-12008

From:
Wilhelm Friedrich Philipp (Wilhelm) Pfeffer
To:
Charles Robert Darwin
Date:
22 Apr 1879
Source of text:
DAR 209.14: 187
Summary:

In response to CD’s query, discusses sleep movements of plants. Recommends papers on subject.

Contributor:
Darwin Correspondence Project
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DCP-LETT-12856

From:
Wilhelm Friedrich Philipp (Wilhelm) Pfeffer
To:
Charles Robert Darwin
Date:
25 Nov 1880
Source of text:
DAR 174: 37
Summary:

Thanks for Movement in plants.

Describes work [on Pflanzenphysiologie, 2 vols. (1881)].

Contributor:
Darwin Correspondence Project

DCP-LETT-13425

From:
Wilhelm Friedrich Philipp (Wilhelm) Pfeffer
To:
Charles Robert Darwin
Date:
24 Oct 1881
Source of text:
DAR 174: 38, 38/1
Summary:

Will send 2d vol. [of his Pflanzenphysiologie (1881)].

CD has occasionally misinterpreted him in Movement in plants; by "after-working" (Nachwirkung) he means "after-working of preceding movements", not of the irritating cause [light].

Contributor:
Darwin Correspondence Project
Text Online

FVM-81-10-26

From:
Wilhelm Pfeffer
To:
Ferdinand von Mueller
Date:
26 October 1881
Source of text:
RBG Kew, Kew correspondence, Australia, Mueller 1871, f. 346
Summary:

No summary available.

Contributor:
Correspondence of Ferdinand von Mueller Project

DCP-LETT-13464

From:
Wilhelm Friedrich Philipp (Wilhelm) Pfeffer
To:
Charles Robert Darwin
Date:
6 Nov 1881
Source of text:
DAR 174: 39
Summary:

It is impossible to trace the direct connections between stimuli and responses in plant movements. Disagrees with much of Julius von Wiesner [Die Bewegungsvermögen der Pflanzen (1881)]. Disagrees with CD on induced movements and circumnutation.

Contributor:
Darwin Correspondence Project
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