Charles Darwin Letters

[Letter, Charles R. Darwin to John Burdon-Sanderson, October 1, 1873] Darwin, Charles, 1809-1882


Charles Darwin, "Down" to John Burdon-Sanderson. Hopes that his observations about the movement of the motor influence from excited glands in Drosera leaves will help Burdon-Sanderson. A.L.S. 1 p.

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