INDEX 



451 



Vandendries, 224 



Vanessa (butterfly), 61 

 Van Hook, 82 

 Vanilla (angiosperm I, !<)*.» 

 Varieties, origin of, 3-17 

 Vaucheria (green alga), 60, 85 

 Vegetative apogamy, 314, 315 



nnil at ion, 351 

 Vejdowsky, 67, 250, 257 

 Velten, 33 



Vermiform nuclei, 298, 299 

 Verworn, 42, 50, 326 

 Vesper ago (bat), 274 

 V tela (horse bean), chromosome comple- 

 ment, 160, 161 



deranged mitosis, 211, 212 



reduction, 235, 236, 238, 254 



somatic mitosis, 147, 153, 242 

 Vines, 311/. 

 Virchow, 10, 15 



Viscosity of protoplasm, 39, 62, 189 

 Viscum (mistletoe), 47 

 Vital units, 48, 398 ff. 

 Vitalism, 49, 52, 409, 412 

 Vitelline membrane, 286 

 Vo'inov, 118, 119 

 Volutin, 41 



Volvocaceae (green algae), 112 

 von Voss, 257 

 de Vries, intracellular pangenesis, 399 



(Enothera mutants, 344, 347, 349 



pangens, 49, 258, 399 



tonoplast, 47 



W 



W-chromosome, 363 



Wager, 13, 108, 112, 290 

 Wakker, 109, 110 

 Waldeyer, 144, 326 

 Walker, 224 



Wall of roll, 26, 28, 190 jf. 

 Walton, 248, 279, 405 

 Warburg, 285, 287 

 Wasielewski, 211, 212, 213 

 Wassilief, 118 

 Watase, 181 



Water in protoplasm, 37 

 Webber; 83, 92, 93, 288, 294, 302 

 Weinstein, 389 

 Weinzieher, 236 

 Weismann, 16, 49, 225 

 parthenogenesis, 31 8 



Weismann, reduction, 226 



theories of heredity ami develop- 

 ment, 391, loo ]T. 

 Wells, H» 



Welsford, 290, 298, 299, 312, 325 

 Weniger, 298 :;<)1 

 Wenrich, 156. 158, 162, 233, 237, 243, 



J.-.7. lios. 392, 

 West and Lechmere, 136 

 Wheeler, 279 

 Wheldale, 135 

 Wherry, 70 

 White, 384 

 Whitman, 369 

 Whitney, 357, 36s. 370 

 Wieman, 361, 362 

 Wiesner, 48, 109, 193 

 Wildman, lis. 120. 121. 281 

 Wille, 46 



Williams, C. L., 1M 

 Williams, J. L., 80. s2. 223 

 Wilson, E. B., abnormal eleavage, 328 



achromatic figure, 181-1 v"» 



chemical nature of gene, 112. 114 



chondriosomes, 119 



chromatin and cytoplasm, 69 



chromosomes and heredity, 396 397 



conjugation in Paramcecium, 284 



crossing over, 393, 394 



genetic continuity, 323 



hyaloplasm sphere, 76 



individuality of chromosome, 157 



protoplasm, 34, 49 



sex-chromosome-. :;."i^ ff. 



somatic chromosomes, 152 



spermatozoon, 275 

 Wilson, H. V., 1 38 

 Wilson, M., 88, 89 

 Wilson and Morgan, 386, 393 

 Winge, 208, 209 

 von Winiwarter, centrosomes, 77 



chondriosomes, 123 



chromosomes in man. 362 



reduction, 228, 231, 237 

 von Winiwarter and Sainmont, 257 

 Winkler, 62, Ml I 

 win Wisselingh, 210 

 Wodsedalek, 361 

 Wdhler, 50 

 Wolfe, 80, 223 

 WolflF, i. 5 



Wollenweber, ill. 112 

 Woodburn, 2 



