From:
James Frederick Simpson
To:
Charles Robert Darwin
Date:
4 Nov 1881
Source of text:
DAR 177: 167
Summary:
Relates some of his observations on the behaviour and activity of earthworms.
Contributor:
Darwin Correspondence Project
Relates some of his observations on the behaviour and activity of earthworms.
Thanks SHV for his letter [13455] in answer to his questions about the action of ammonium carbonate on the root cells of Euphorbia peplus. Suggests further observations.
Has read J. Sachs [Textbook of botany, English translation (1875)] and H. A. De Bary [Vergleichende Anatomie (1877)] on milk-tubes. He believes that tubes he has observed in germinating roots of Euphorbia myrsinites are modified milk tubes. Will send a paper on the subject to the Linnean Society.
Cannot read signature on letter sent via JDH from Lima.