"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. "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 work is of special value to professional men, yet educated persons generally will find much in it which it is both interesting and important to know."--_The Scottish Weekly._ VI. THE VILLAGE COMMUNITY. By G. L. GOMME. Illustrated. "His book will probably remain for some time the best work of reference for facts bearing on those traces of the village community which have not been effaced by conquest, encroachment, and the heavy hand of Roman law."--_Scottish Leader._ VII. THE CRIMINAL. By HAVELOCK ELLIS. Illustrated. "An ably written, an instructive, and a most entertaining book."--_Law Quarterly Review._ * * * * * London: WALTER SCOTT, LIMITED, 24 Warwick Lane. The Contemporary Science Series--continued. VIII. SANITY AND INSANITY. By Dr. CHARLES MERCIER. Illustrated. "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. "Marks a step of some importance in the study of some difficult physiological and psychological problems which have not yet received much attention in the scientific world of England."--_Nature._ X. MANUAL TRAINING. By Dr. C. M. WOODWARD, Director of the Manual Training School, St. Louis. Illustrated. "There is no greater authority on the subject than Professor Woodward."--_Manchester Guardian._ XI. THE SCIENCE OF FAIRY TALES. By E. SIDNEY HARTLAND. "Mr. Hartland's book will win the sympathy of all earnest students, both by the knowledge it displays, and by a thorough love and appreciation of his subject, which is evident throughout."--_Spectator._ XII. PRIMITIVE FOLK. By ELIE RECLUS. "For an introduction to the study of the questions of property, marriage, government, religion,--in a word, to the evolution of society,--this little volume will be found most convenient."--_Scottish Leader._ XIII. THE EVOLUTION OF MARRIAGE. By Professor LETOURNEAU.