From:
Charles Robert Darwin
To:
Joseph Dalton Hooker
Date:
22 July [1879]
Source of text:
DAR 95: 485–8
Summary:
At work on Movement in plants.
Discusses John Ball’s, G. de Saporta’s, and his own theories of higher plant origin. Their rapid development remains an "abominable mystery".
Frank is working in Würzburg.
Contributor:
Darwin Correspondence Project
