Strata, 88, 89; arranged according to ages, 89; 90; time of formation, 92.
Struggle for existence, 124; intra-specific, 125; three divisions of, 126-129; 139, 174, 175.
Systems, respiratory, excretory, circulatory, 17; organic, reproductive, 18; nervous, 256, 257; blood-vascular, respiratory and excretory, 257; ethical, 286; religious, 288.
Tapeworm, a relative of simple worms, 50; 123.
Thorndike, 209; heredity of mental qualities, 232.
Tortoise, soft shelled, of the Mississippi, 45.
Variation, 110; causes of, 111; among individuals, 112, 113; fact of difference, phenomenon of, 114; 115, 118, 119, 121, 129; congenital, 138; human, 174; racial, 177; laws of, in mental phenomena, 203; 232.
Vertebrates, backboned animals, fishes the lowest order of, 46; principles of relationship, families, tribes, 47; 53-59; great classes originate together, 64; more complicated, 68; skeleton remains of, succeed invertebrates, 92; testimony of the rocks, 93; largest, 94; appearance of great classes of, 94; 95; classes that make up, 156; lower, arrangement of organs, 201; nervous system of, 256, 257.
Wasps, ground, 207; organizations, of digger, 260; 261.
Weismann, 71, 72; proved nuclei of egg contains, essential factors, 71, 145, 148.
Woods, heredity of mental qualities, 232.
Worms, blindworm of England, 45; 48, 50, 53, 81; nervous mechanism of, 205, 206; nervous system of, 256, 257.
Zoölogy, 34, 75, 78; geographical distribution, 100.
Columbia University in the City of New York
The Press was incorporated June 8, 1893, to promote the publication of the results of original research. It is a private corporation, related directly to Columbia University by the provisions that its Trustees shall be officers of the University and that the President of Columbia University shall be President of the Press.
The publications of the Columbia University Press include works on Biography, History, Economics, Education, Philosophy, Linguistics, and Literature, and the following series:
~Columbia University Contributions to Anthropology.~ ~Columbia University Biological Series.~ ~Columbia University Studies in Cancer and Allied Subjects.~ ~Columbia University Studies in Classical Philology.~ ~Columbia University Studies in Comparative Literature.~ ~Columbia University Studies in English.~ ~Columbia University Geological Series.~ ~Columbia University Germanic Studies.~ ~Columbia University Indo-Iranian Series.~ ~Columbia University Contributions to Oriental History and Philology.~ ~Columbia University Oriental Studies.~ ~Columbia University Studies in Romance Philology and Literature.~ ~Records of Civilization: Sources and Studies.~ ~Adams Lectures.~ ~Julius Beer Lectures.~ ~Blumenthal Lectures.~ ~Carpentier Lectures.~ ~Hewitt Lectures.~ ~Jesup Lectures.~