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DCP-LETT-12128

From:
Charles Robert Darwin
To:
Francis Darwin
Date:
28 June [1879]
Source of text:
DAR 211: 59
Summary:

Discusses the movements of radicles. His observations show that sensitivity to touch resides in the root tip and he believes that sensitivity to gravity governing geotropic responses is also in the root tip. Would much like to convert Julius von Sachs to his ideas on radicle movement.

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Darwin Correspondence Project
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