"The same liberal spirit that marked his public life is seen in the pages of his book, giving it a zest and interest that can not fail to secure for it hearty commendation and honest praise."--_Philadelphia Public Ledger_. "A conscientious summary of the body of learning to which it relates accumulated during long years of research.... A monument of industry."--_N.Y. Evening Post_. "A work which constitutes in many ways the most instructive review that has ever been written of the evolution of human knowledge in its conflict with dogmatic belief.... As a contribution to the literature of liberal thought, the book is one the importance of which can not be easily overrated."--_Boston Beacon_. "The most valuable contribution that has yet been made to the history of the conflicts between the theologists and the scientists."--_Buffalo Commercial_. "Undoubtedly the most exhaustive treatise which has been written on this subject.... Able, scholarly, critical, impartial in tone and exhaustive in treatment."--_Boston Advertiser_. New York: D. APPLETON & CO., 72 Fifth Avenue. * * * * * A NEW BOOK BY PROF. GROOS. THE PLAY OF MAN. By KARL GROOS, Professor of Philosophy in the University of Basel, and author of "The Play of Animals." Translated, with the author's cooperation, by Elizabeth L. Baldwin, and edited, with a Preface and Appendix, by Prof. J. Mark Baldwin, of Princeton University. 12mo. Cloth, $1.50 net; postage, 12 cents additional.