LIST OF OPEN COURT PUBLICATIONS ON SCIENCE

The Primary Factors of Organic Evolution. By E. D. Cope. Second edition. Pages, 550; illustrations, 121; tables, bibliography, and index. Cloth, $2.00 net.

A comprehensive handbook of the Neo-Lamarckian theory of Evolution.

A Mechanico-Physiological Theory of Organic Evolution. By Carl von Naegeli. Translated by V. A. Clark and F. A. Waugh. Price, cloth, 60c; paper, 30c net.

A synopsis of his great work on evolution.

Darwin and After Darwin. An exposition of the Darwinian Theory and a Discussion of Post-Darwinian Questions. By George J. Romanes. 3 vols. Price, $4.00 net.

Part I. The Darwinian Theory. Price, cloth, $2.00 net.

Part II. Post-Darwinian Questions: Heredity and Utility. Price, cloth, $1.50 net.