VOLUME XXVII.

INTERNATIONAL SCIENTIFIC SERIES.

_NOW READY. In 12mo and bound in cloth._

I. FORMS OF WATER, In Clouds, Rain, Rivers, Ice, and Glaciers. By Prof. JOHN TYNDALL. $1.50.

II. PHYSICS AND POLITICS; or, Thoughts on the Application of the Principles of “Natural Selection” and “Inheritance” to Political Society. By WALTER BAGEHOT. $1.50.

III. FOODS. By EDWARD SMITH, M. D., LL. B., F. R. S. $1.75.

IV. MIND AND BODY. By ALEXANDER BAIN, LL. D. $1.50.

V. THE STUDY OF SOCIOLOGY. By HERBERT SPENCER. $1.50.

VI. THE NEW CHEMISTRY. By Prof. JOSIAH P. COOKE, Jr., of Harvard University. $2.00.

VII. THE CONSERVATION OF ENERGY. By Prof. BALFOUR STEWART, LL. D., F. R. S. $1.50.

VIII. ANIMAL LOCOMOTION; or, Walking, Swimming, and Flying, with a Dissertation on Aeronautics. By J. B. PETTIGREW, M. D. Illustrated. $1.75.

IX. RESPONSIBILITY IN MENTAL DISEASE. By H. MAUDSLEY, M. D. $1.50.

X. THE SCIENCE OF LAW. By Prof. SHELDON AMOS. $1.75.

XI. ANIMAL MECHANISM. A Treatise on Terrestrial and Aërial Locomotion. By E. J. MAREY. 117 Illustrations. $1.75.

XII. THE HISTORY OF THE CONFLICT BETWEEN RELIGION AND SCIENCE. By JOHN WILLIAM DRAPER, M. D., LL. D. $1.75.

XIII. THE DOCTRINE OF DESCENT, AND DARWINISM. By Prof. OSCAR SCHMIDT, of Strasburg University. $1.50.

XIV. THE CHEMISTRY OF LIGHT AND PHOTOGRAPHY: In its Application to Art, Science, and Industry. By Dr. H. VOGEL. 100 Illustrations. $2.00.

XV. FUNGI; their Nature, Influence, and Uses. By M. C. COOKE, LL. D. Edited by Rev. M. J. BERKELEY, F. L. S. 109 Illustrations. $1.50.

XVI. THE LIFE AND GROWTH OF LANGUAGE. By Prof. W. D. WHITNEY, of Yale College. $1.50.

XVII. MONEY AND THE MECHANISM OF EXCHANGE. By W. STANLEY JEVONS, M. A., F. R. S. $1.75.

XVIII. THE NATURE OF LIGHT, with a General Account of Physical Optics. By Dr. EUGENE LOMMEL, Professor in the University of Erlangen. 88 Illustrations and a Plate of Spectra in Chromo-lithography. $2.00.

XIX. ANIMAL PARASITES AND MESSMATES. By M. VAN BENEDEN, Professor of the University of Louvain. 83 Illustrations. $1.50.

XX. ON FERMENTATIONS. By P. SCHÜTZENBERGER, Director at the Chemical Laboratory at the Sorbonne. 28 Illustrations. $1.50.

XXI. THE FIVE SENSES OF MAN. By JULIUS BERNSTEIN, O. O. Professor in the University of Halle. 91 Illustrations. $1.75.

XXII. THE THEORY OF SOUND IN ITS RELATION TO MUSIC. By Prof. PIETRO BLASERNA, of the Royal University of Rome. Numerous Woodcuts. $1.50

XXIII. STUDIES IN SPECTRUM ANALYSIS. By J. NORMAN LOCKYER. Illustrations. $2.50.

XXIV. A HISTORY OF THE GROWTH OF THE STEAM-ENGINE. By ROBERT H. THURSTON, A. M., C. E., Prof. of Mechanical Engineering in the Stevens Ins. of Technology, Hoboken, N. J. 163 Illustrations. $2.50.

XXV. EDUCATION AS A SCIENCE. By ALEXANDER BAIN, LL. D., Professor of Logic in the University of Aberdeen. $1.75.

XXVI. MODERN CHROMATICS, with Applications to Art and Industry. By OGDEN N. ROOD, Professor of Physics in Columbia College. 130 original Illustrations.

_D. APPLETON & CO., Publishers, 549 & 551 Broadway, New York._

THE INTERNATIONAL SCIENTIFIC SERIES.

THE

HUMAN SPECIES.

BY A. DE QUATREFAGES,

PROFESSOR OF ANTHROPOLOGY IN THE MUSEUM OF NATURAL HISTORY, PARIS.

NEW YORK: D. APPLETON AND COMPANY, 549 AND 551 BROADWAY. 1879.

CONTENTS.