The Contemporary Science Series will bring within general reach of the English-speaking public the best that is known and thought in all departments of modern scientific research. The influence of the scientific spirit is now rapidly spreading in every field of human activity. Social progress, it is felt, must be guided and accompanied by accurate knowledge,—knowledge which is, in many departments, not yet open to the English reader. In the Contemporary Science Series all the questions of modern life—the various social and politico-economical problems of to-day, the most recent researches in the knowledge of man, the past and present experiences of the race, and the nature of its environment—will be frankly investigated and clearly presented.

The first volumes of the Series will be:—

THE EVOLUTION OF SEX. By Prof. Patrick Geddes and J. Arthur Thomson. With 90 Illustrations, and about 300 pages. [Now Ready.

ELECTRICITY IN MODERN LIFE. By G. W. de Tunzelmann. With 88 Illustrations. [Ready 25th November.

THE ORIGIN OF THE ARYANS. By Dr. Isaac Taylor. With numerous Illustrations. [Ready 25th December.

The following Writers, among others, are preparing volumes for this Series:—

Prof. E. D. Cope, Prof. G. F. Fitzgerald, Prof. J. Geikie, G. L. Gomme, E. C. K. Gonner, Prof. J. Jastrow (Wisconsin), E. Sidney Hartland, Prof. C. H. Herford, J. Bland Sutton, Dr. C. Merrier, Sidney Webb, Dr. Sims Woodhead, Dr. C. M. Woodward (St. Louis, Mo.), etc.

London: Walter Scott, 24 Warwick Lane, Paternoster Row.

Crown 8vo, about 350 pp. each, Cloth Cover, 2s. 6d. per vol. Half-polished Morocco, gilt top, 5s.

COUNT TOLSTOÏ’S WORKS.