"The chapters on Time and Action, Reaction Time, Thinking Time, Rhythmic Action, and Power and Will are most interesting. This book should be carefully read by every one who desires to be familiar with the advances made in the study of the mind, which advances, in the last twenty-five years, have been quite as striking and epoch-making as the strides made in the more material lines of knowledge."—Jour. Amer. Med. Ass'n., Feb. 22, 1908.
25.—The World's Gold. By L. de Launay, Professor at the École Superieure des Mines. Translated by Orlando Cyprian Williams. With an Introduction by Charles A. Conant, author of "History of Modern Banks of Issue," etc. Crown 8vo. Net, $1.75.
M. de Launay is a professor of considerable repute not only in France, but among scientists throughout the world. In this work he traces the various uses and phases of gold; first, its geology; secondly, its extraction; thirdly, its economic value.
26.—The Interpretation of Radium. By Frederick Soddy, Lecturer in Physical Chemistry in the University of Glasgow. Crown 8vo. With Diagrams. Net, $1.75.
As the application of the present day interpretation of Radium (that it is an element undergoing spontaneous disintegration) is not confined to the physical sciences, but has a wide and general bearing upon our whole outlook on Nature, Mr. Soddy has presented the subject in non-technical language, so that the ideas involved are within reach of the lay reader. No effort has been spared to get to the root of the matter and to secure accuracy, so that the book should prove serviceable to other fields of science and investigation, as well as to the general public.
27.—Criminal Man. According to the Classification of Cesare Lombroso. Briefly Summarized by his Daughter, Gina Lombroso Ferrero. With 36 Illustrations and a Bibliography of Lombroso's Publications on the Subject. Crown 8vo. Net, $2.00.
Signora Guglielmo Ferrero's résumé of her father's work on criminal anthropology is specially dedicated to all those whose office it is to correct, reform, and punish the criminal, with a view to diminishing the injury caused to society by his anti-social acts; also to superintendents, teachers, and those engaged in rescuing orphans and children of vicious habits, as a guide in checking the development of evil germs and eliminating incorrigible subjects whose example is a source of corruption to others.