The Contemporary Science Series. Edited by Havelock Ellis. I. THE EVOLUTION OF SEX. By Prof. PATRICK GEDDES and J. A. THOMSON. With 90 Illustrations. Second Edition. “The authors have brought to the task--as indeed their names guarantee--a wealth of knowledge, a lucid and attractive method of treatment, and a rich vein of picturesque language.”--_Nature._ II. ELECTRICITY IN MODERN LIFE. By G. W. DE TUNZELMANN. With 88 Illustrations. “A clearly-written and connected sketch of what is known about electricity and magnetism, the more prominent modern applications, and the principles on which they are based.”--_Saturday Review._ III. THE ORIGIN OF THE ARYANS. By Dr. ISAAC TAYLOR. Illustrated. Second Edition. “Canon Taylor is probably the most encyclopædic all-round scholar now living. His new volume on the Origin of the Aryans is a first-rate example of the excellent account to which he can turn his exceptionally wide and varied information.... Masterly and exhaustive.”--_Pall Mall Gazette._ IV. PHYSIOGNOMY AND EXPRESSION. By P. MANTEGAZZA. Illustrated. “Brings this highly interesting subject even with the latest researches.... Professor Mantegazza is a writer full of life and spirit, and the natural attractiveness of his subject is not destroyed by his scientific handling of it.”--_Literary World_ (Boston). V. EVOLUTION AND DISEASE. By J. B. SUTTON, F.R.C.S. With 135 Illustrations. “The book is as interesting as a novel, without sacrifice of accuracy or system, and is calculated to give an appreciation of the fundamentals of pathology to the lay reader, while forming a useful collection of illustrations of disease for medical reference.”--_Journal of Mental Science._ VI. THE VILLAGE COMMUNITY. By G. L. GOMME. Illustrated. “The fruit of some years of investigation on a subject which has of late attracted much attention, and is of much importance, inasmuch as it lies at the basis of our society.”--_Antiquary._ VII. THE CRIMINAL. By HAVELOCK ELLIS. Illustrated. “An ably written, an instructive, and a most entertaining book.”--_Law Quarterly Review._ “The sociologist, the philosopher, the philanthropist, the novelist--all, indeed, for whom the study of human nature has any attraction--will find Mr. Ellis full of interest and suggestiveness.”--_Academy._ VIII. SANITY AND INSANITY. By Dr. CHARLES MERCIER. Illustrated. “He has laid down the institutes of insanity.”--_Mind._ “Taken as a whole, it is the brightest book on the physical side of mental science published in our time.”--_Pall Mall Gazette._ IX. HYPNOTISM. By Dr. ALBERT MOLL. Second Edition.