470 Subject Index 



W 



Warburg flasks, 377 



Warmblooded animals, 1, 374, 379 



Warts, 263 



W^asa II, 366 



Water, 383 



Watercress, 324 



growth rates reduced, 370 

 increase of \ itamin C, 324 

 slower growth, 324 

 succulence, 324, 370 



Watermelon, 327-31 

 cavity in seeds of, 329 

 chromosomal types, 327-31 

 commercial growing, 331 

 female sterility, 327, 329 

 genetic marks to distinguish, 329 

 increase in number of fruits, 329 

 parthenocarpy in, 329 

 propagation of seed for, 328 

 seed for, 328-29 

 seed production, 331 

 seedless fruits, 327, 329 

 special cidtivation of, 329 

 tetraploid seed parent, 327-31 

 triploid seed, 327 

 triploids, 327-31 

 weight. 329 

 yield, 329 



Waxes, 140 



Weed killer, 275 



Wheat, 26; see also Triticuin 

 Wheat seedlings, 104 



White blood cells, 176, 184 

 ^Vindaus' formula of colchicine, 171 

 AVoodland strawberry, cidtivated strains, 



323 

 \Voimd healing, 246 



Xanthine-dehydrase, 397 



Zanthopterin, 241 



A' -chromosome, 352-54 



in plants, 351-54 



ratios, 353-54 

 Xeuopiis 



amputated tail, 376 



laevis, 97, 210, 242, 245 



larvae, 376 



regeneration of tail, 376 

 X-ray, 54, 55, 105, 258, 266, 275 



crystallographic analysis, 169 



V-chromosomc, 352-54 

 in plants, 352-54 

 ratios, 353-54 



Veast, 120, 121 

 brewing test, 122 

 methvlene blue, 123 

 polyploids, 121 



Zea, 354 



