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From:
Robert Francis Cooke; John Murray
To:
Charles Robert Darwin
Date:
6 Sept 1879
Source of text:
DAR 92: B5–6
Summary:

Murray’s offer to publish Erasmus Darwin. RC states terms and preliminary arrangements.

Contributor:
Darwin Correspondence Project
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From:
Charles Robert Darwin
To:
Hugo de Vries
Date:
6 Sept 1879
Source of text:
Artis Library (De Vries 7)
Summary:

Perhaps movement from side to side in plants is caused by the contraction of one side, rather than the expansion of the other.

Sends seeds of Lychnis Githago: he observed the hypocotyledenous stem, not the root, contracting.

Contributor:
Darwin Correspondence Project