Index 



407 



Taxonomist, i, 213 



Terms, of oxygen, ii, 202; of life, 

 207 



Tetany, i, 117, 135 



Tethelin, ii, 123 



Theory, of structive of proto- 

 plasm, i, 138; wrong better than 

 none, 292; Leibnitzian, ii, 150; 

 of organisms, and of knowledge, 

 152; elementalist, 157; tropistic 

 and segmental, of nerve action, 

 185; of tropisms, 232; of apper- 

 ception, 232; of knowledge, 296; 

 of consciousness, 296 



Thomson, J. A., i, 309 



Threshold of excitability, ii, 165 



Thymus, ii, 114 



Thyroid, ii, 124; apparatus, 114; 

 effect of removing, 115, 117; 

 triple alliance with pituitary 

 and adrenal, 127; substance, 

 143; organ-transforming sub- 

 stance from, 145 



Tissue, laboratories, i, 83; mix- 

 tures, 143; cultures, 168; falla- 

 cious teaching about, 240; of 

 multicellular organisms, 281 ; 

 isolated, 294; of trees, specific- 

 ity of, ii, 58 



Toads, ii, 76 



Tonniges, C., i, 326 



Torrey, H. B., ii, 97 



Totipotence, theory of, i, 202 



Transformation, essence of evolu- 

 tion, i, 41; heredity works by, i, 

 312, 322; of substances, ii, 72, 

 287 



Transmission, in connection with 

 heredity, i, 312 



Transmutation of metals, ii, 288 



Transcendentalism, ii, 233 



Treviranus, i, 5 



Trial and error, ii, 252, 256 



Trichocysts, i, 326 



Tripylea, i, 278 



Tropism theory, essentially an or- 

 ganismal theory, ii, 188; relation 

 to apperception, 232 



Tropisms, explained by organism, 

 ii, 190; organismal nature of, 

 239 ; automatic and anticipatory 

 character of, 241 ; higher ra- 



tional life and, 242 



Tropistic and higher psychic ac- 

 tivity, ii, 220 



Tropistic mechanism, ii, 189 



Tropistic theories of nerve action, 

 ii, 185 



Truth, ultimate, ii, 152, 289 



Trypsin, i, 106 



Type, i, 7 



Tyranny, of the whole, ii, 158 



Ultimate, problem, i, 35; criterior 

 of, ii, 149, 201 ; particles, ii, 151 : 

 truth, 152, 175, 289; elements. 

 228 



Ultramicroscopic organisms, i, 265 



Unicellular, i, 290 



Units, representative, i, 306 



Unity, the organism the "only 

 real," i, 12, 26, 205; physiolog- 

 ical, 14; of the individual, 33; 

 thought of, ii, 150 



Uranium H., ii, 341 



Utility, racial, ii, 251 ; natural se- 

 lectionist meaning of, 261 



Variation, ii, 245 



Vertebrates, man a, because moth- 

 ers were, ii, 43 



Verworn, M., ii, 279 



Vetch, ii, 106 



Virgin propagation, i, 352 



Vital force, ii, 149 



Vitalism, i, 113; author's attitude 

 toward, ii, 207 



Viviparous bony fishes, mating 

 habits of, ii, 265 



Volition, ii, 161 



Wallace, A. R., ii, 278 



Waller, H. E., ii, 126 



Warblers, ii, 264 



Wasps, instincts, variability of, ii, 

 251 ; excessive action of, 268 



Wassermann, i, 258 



Watase, S., i, 221 



Webber, H. J., i, 330 



Weismann, A., studies of sex-cells 

 in hydroids, i, 60; Grette's re- 

 sults contrary to, 68; metaphys- 

 ics of, 225, 348 



Whale, breaching of, ii, 257 



Wheeler, W. M., sense of smell, 



