Index 



379 



Trypanosomes, 332 ff. 

 Trypsin, synthetic action of, 27 

 Tuber brumale, 60 

 Tubularia crocea, 171 

 Tubularia mesembryanthemum t i6-j, 



169, 192 

 Twins, origin of, 136 ff.; sex of, 



211 



Tyndall, 33 

 Typhlogobius, 320 

 Typhlomolge, 320 

 Typhlotriton, 320, 323 

 Tyrosinase, 249, 250 

 Tyrosine, 249, 250 



v. Uexkull, J., 4 ff., 128, 139 

 Uhlenhuth, E., 157, 183, 187 

 Uhlenhuth, P., 55, 58, 66, 322 

 Underbill, F. P., 23 



Vanessa, prorsa, 303; levana, 



303 



Vaney, 217 



Van Slyke, D. D., 22, 24, 291 

 van't Hoff, 24 ff., 290, 292, 296 

 Variation, 6, 297 ff., 34 6 ~348 



Vitzou, 159 

 Volvox, 280 



Walcott, 42, 6 1 



Warburg, O., 117 ff. 



Warming, 41 



Wasps, polymorphism in, 222- 



224; sex determination, 255 ff. 

 Wassermann, 55 

 Wasteneys, H., 29, 82, 87, 112, 



113, 117, 191, 277, 293, 295, 



335, 364 

 Weiggert, 188 

 Weismann, 7, 30, 303 

 Wells, H. G., 62, 69 

 Welsh, D. A., 60 

 Werner, P., 340 

 Wheeler, W. M., 43 

 White, J., 36 

 Whitney, D. D., 224 

 Wilson, E. B., 68, 143, 199 ff. 

 Winkler, 47 



Winogradsky, S., 16 ff., 42 

 Wolf, G., 182, 187 



Yeast cells, cultivation of, 15 ff. 

 Young, 16, 358 



