Produced by Marilynda Fraser-Cunliffe, LN Yaddanapudi and the Online Distributed Proofreading Team at http://www.pgdp.net [Illustration: Frontispiece-Charles Darwin] DARWIN, AND AFTER DARWIN _AN EXPOSITION OF THE DARWINIAN THEORY AND A DISCUSSION OF POST-DARWINIAN QUESTIONS_ BY GEORGE JOHN ROMANES, M.A., LL.D., F.R.S. _Honorary Fellow of Gonville and Caius College, Cambridge_ I THE DARWINIAN THEORY FOURTH EDITION Chicago THE OPEN COURT PUBLISHING COMPANY 1910 The Illustrations of this book (with the exception of the Frontispiece and the colored plate facing page 332) are copyrighted under the title "Darwinism Illustrated." THE OPEN COURT PUBLISHING CO. PRESS OF THE BLAKELY-OSWALD PRINTING CO. CHICAGO [Illustration: Letter to Mr. Hegeler Transcription: Ch. Ch. Oxford: March 15th 1892. My dear Sir, As we have now agreed that the Open Court Publishing Company is to undertake the American edition of my work entitled "Darwin and after Darwin," I have much pleasure in transferring to you the copyright thereof, with all that this includes. Thanking you very much for the kindness and liberality which have marked your conduct of these negotiations, I remain, Yours very faithfully, George J. Romanes To Edward C. Hegeler Esq. La Salle, Ill. U. S.] PREFACE Several years ago Lord Rosebery founded, in the University of Edinburgh, a lectureship on "The Philosophy of Natural History," and I was invited by the Senatus to deliver the lectures. This invitation I accepted, and subsequently constituted the material of my lectures the foundation of another course, which was given in the Royal Institution, under the title "Before and after Darwin." Here the course extended over three years--namely from 1888 to 1890. The lectures for 1888 were devoted to the history of biology from the earliest recorded times till the publication of the "Origin of Species" in 1859; the lectures for 1889 dealt with the theory of organic evolution up to the date of Mr. Darwin's death, in 1882; while those of the third year discussed the further developments of this theory from that date till the close of the course in 1890.