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ERASMUS DARWIN. By Ernst Krause. Translated from the German by W. S. Dallas, with a preliminary notice by Charles Darwin. New York: D. Appleton & Co.

This work originally appeared in the German scientific journal "Kosmos." To this has been added from the private materials possessed by the Darwin brothers. The work is a very thorough one and presents the main events of Dr. Darwin's life, and the theories entertained by him. The most interesting part of the volume by far is that edited by Charles Darwin. It is a memoir full of interest. Krause's part is an essay on the descent theory and its history. The two articles very equally divide the volume, and, together, make up a most valuable contribution to scientific history.