Charles Darwin Letters

[Letter, Charles R. Darwin to John Burdon-Sanderson, July 25, 1873] Darwin, Charles, 1809-1882


Charles Darwin, "Down" to John Burdon-Sanderson. Discusses the latest results regarding the digestive powers of Drosera and Dionaea; the different substances that cause inflection; the effects of heat and of phosphate of ammonia on the leaves. A.L.S. 2 p. Printed in Darwin Frances. "The Life and Letters of Charles Darwin", V. 2, p. 495.

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