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