Selection, cessation of, 99, 292; reversal of, 101, 292.
Somatogenetic and somatoplasm, 123, 137, 155, 242-249.
_Some Laws of Heredity_, referred to, 24.
Species, stress laid on origin of, 159; necessarily due to natural selection, 168.
SPENCER, Herbert, referred to, 8, 64-68, 95.
_Struggle for Existence between the parts of an Organism_, referred to, 299.
Theory of Heredity, referred to, 40, 47, 137, 154; quoted, 46, 47.
Transplantation of ovaries in rabbits, 143, 147.
Trees, comparison of European and American, 201.
Turkey, tuft of hair of, 181; losing metallic tints, 186.
Utility, law of, 8, 20, 159; universality of, 166; of specific characters, 172; of specific characters in birds, 176; of specific characters in Mammals, 178.
_Variation of Animals and Plants under Domestication_, quoted, 3, 4, 53, 66, 96, 187, 189, 191, 193, 195, 213-216, 330, 331.
Vestigial characters, 171, 184, 261, 294.
Vitality, plumes of birds due to surplus, 270, 25.
WALLACE, Mr. A. R., referred to, 2, 6, 9, 11, 15, 20-35, 50, 66-70, 167, 169, 172-175, 180-198, 210, 218-227, 235-237, 252, 256, 258, 263-278, 285, 313-322, 328, 331, 332; quoted, 22-24, 27, 67, 180-182, 185, 186, 190, 191, 221-223, 235, 236, 269, 273, 313.
WEISMANN, Prof., referred to, 2, 7, 9, 12, 13, 39-60, 65, 66, 90-105, 112, 128, 134-142, 148, 149, 151, 152, 155, 156, 173, 241, 243, 244, 246, 279, 280, 291, 294, 297, 298, 300, 311, 338; quoted, 56, 91, 97, 152, 243, 244, 297.
Weismannism, diagram of constituent theories, 43, 136; elusiveness of, 334.
_Weismannism once more_, referred to, 66, 95.
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.