[Letter, Charles R. Darwin to John Burdon-Sanderson, September 13, 1873] Darwin, Charles, 1809-1882
Charles Darwin, "Down" to John Burdon-Sanderson. He is delighted that Burdon-Sanderson has got a decided result in the experiments; discusses the effects of phosphate of ammonia on the leaves. A.L.S. 1 p. Printed in Darwin Frances. "More Letters of Charles Darwin", V. 2, p. 395.
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