Les theories de l'evolution. Paris: Flammarion, 1909.
8vo. [iv], 371, 8 pp. (publis Original printed wrappers, uncut. Ownership signature on the half-title. $75.00
First edition of the comprehensive overview of evolution. The authors first discuss earlier notions in the development of the theory, citing Lamarck, Erasmus Darwin, Saint-Hilaire, and others. Darwin is treated in detail, followed by an excellent examination of those who followed darwin, including Spencer, Nageli, de Vries, Weismann and Galton. All aspects of heredity are covered, including up-t-date developments in the continuing debates over selection and natural inheritance.