INDEX 



395 



Thoday, J. M., 33, 38, 291, 323 

 Thomas, G., 375 

 Transitions between species, 59 

 Trueman, A. E., 129 

 Trypanosomes, 284 

 Turbulence, 97 

 Turesson, G., 65, 80 



Uroleptus mobilis, 292 

 Urosalpinx, 355 



Valentine, D. H., 10, 22 

 Variation 



geographical, 98 

 nongenetic, 360 

 overlapping, 48 

 phenotypic, 90 ft., 112, 138 

 physiological, 340-343, 345, 349, 

 350, 352, 357, 359 



polytypic, 43, 384 



seasonal, 94 

 Variety, 4 

 Voigt, F. S., 9, 22 

 Volpe, G. P., 337, 338 



Wagler, E., 83, 123 



Ward, G. H., 55, 80 



Weir, J., 127, 153 



Westoll, T. S., 138, 153 



White, M. J. D., 30, 38 



Whitefish, see Coregonus 



Wichterman, R., 162, 276, 323, 324 



Wild type, 25 



Woltereck, R., 99, 102, 123 



Woodruff, L. L., 292, 324 



Zirkle, C, 3 



