274 



INDEX 



Solutions, eflfect on germ-plasm, 



131-137 

 Spencer, H., 212, 2S3, 2S6; 



evolutionary teaching, 9 

 Sporophytes, origin of, 60 

 Standfuss, M., experiments, 123 

 Stabling, injection of fetus ex- 

 tract, 107 

 Stsasbttbgek, nucleus in hered- 

 ity, 99 

 Struggle for existence, 203 

 Sublime, feelings of, 35, 38 

 Swamping effects of intercross- 

 ing, 179 



Teeth, 319, 232-234, 341,242, 348 



Temperature, check on migra- 

 tion, 186 



Tenntson, a., the struggle for 

 existence, 14-15 



Teratological characters, 173 



Testic extract, effect of, in- 

 jected, 107 



Thyroid extract, effect of, 107 



Titanotheres, 242-349 



Tower, W. L., modification of 

 germ-cells, 110, 125-127, 197 



TscHERMAK, E. V., rcdiscoverer 

 of Mendelism, 145 



Ttndall, J., effect of Origin, 

 54 



Unit characters, 143-159; and 



mutation, 160, 161 

 Use and disuse, inheritance of, 



35 



Variability, somatic, in response 

 to environment, 118 



Variations, small, 217, 230, 322; 

 large, 217 



Vestiges of Creation, 31 



Verworn, M., 261 



ViRCHOw, E., germinal continu- 

 ity, 98 



Waagen, W., 349; orthogenesis, 

 193; mutation, 211, 239-333, 

 242; fossil series, 313 



Wagner, M., on isolation, 72, 88, 

 89 



Walcott, C. O., the fossil rec- 

 ord, 9 



Walker, effect of testic extract, 

 107 



Wallace, A. R., in New World, 

 7; natural selection, 18; ad- 

 dress at Linnean Society's 

 Anniversary, 19; coral reefs, 

 46; on Isolation, 83 



Warner, C. D., feeling of awe, 

 38 



Weir, J. J., letter of Darwin 

 to, 33 



Westwood, J. O., proposes read- 

 er to combat Darwinism, 21 



Weismann, a., 35, 40; under- 

 mined Lamarckism, 10; non- 

 transmissibility of acquired 

 characters, 10, 11; idioplasm, 

 144; quoted, 161, 163, 183; 

 adaptation, 193 



Weismannism, 118 



Wheat, limits to improvement, 

 118 



Wheeler, W. M., insect mu- 

 tants, 166 



Whewell, Dr., excludes Origin 

 from college library, 31 



Whitman, C. O., orthogenesis, 

 193 



Wiedehsheim, R., 261 



Will, method of investigating 

 the, 252 



Wilson, E. B., address by, 92- 

 113; on chromosomes, 139 



Wallaston, on wingless oceanic 

 beetles, 47 



Woodward, S., 239 



Wright, C, defense of Darwin, 

 8; review of Mivart, 32-34 



WUNDT, 254 



X-rays, experiments with, on 

 germ-plasm, 127 



Ziehen, 259 



Zoonomia, influence on La- 

 marck, 10 



