INDEX 



357 



Segregation, 1, 3 



Seller, 86, 88-90, 137 



Selection, 286, 294, 296 



Serosa, 184 



Serranus, 95 



Sex chromosome, 172-173 



Sex-determining factors, 206 



Sex factors, 172 



Sex linked factors, 16, 195 



Sex ratios, 134-140 



Sheep, 109-112 



Shull, 97, 206, 225, 266 



Sieboldt, von, 122 



Silkworm, 37,"69, 122, 183, 206 



Smith, G., 96, 114 



Snapdragon, 69 



Solanum, 177 



Sphaerechinus, 147 



Sphserocarpos, 133-134 



Spermatogenesis of grasshoppers, 



186 

 Stevens, 7, 90, 100 

 Stocks, 69 

 Stomps, 175 

 Strobell, 112 

 Strongj'locentrotus, 147 

 Sturtevant, 68, 130, 206, 248 

 Sweet pea, 5, 36, 69, 268 

 Sutton, 4 

 Stylonichia pustulata, 285 



Trident pattern, 237, 250, 259-260 

 Triploidy, 130 

 Trow, 75, 170 

 Tnmcate, 241 



U 



Unit Character, 264 

 Uroleptus, 305 



Vestigial, 8-12, 21-25, 48-53 . 



Vigor, 240 



DeVries, 35, 263 280 



W 



Walnut comb, 270 

 W-chromosome, 172 

 Weismann, 77, 270, 277-278 

 Wheat, 26 

 White eye color, 16-20, 24, 31-32, 



54-59, 203 

 Whitney, 97-98 

 Wilson, 153, 187 

 Winkler, 177-181 

 With, 238 

 Wood, 111 

 Woodruff, 304 

 Wright, 256 



Tanaka, 69, 206 

 Tennent, 154 

 Tetraploidy, 174-177 

 Thelia, 11.5-116 

 Thomas, 193 

 Tobacco, 26 

 Tomato, 26, 177 

 Tower, 43 

 Toxopneustes, 149 

 Toyama, 122 



X-chromosome, 14, 15, 79-82, 198- 



200 

 XX-XY type, 173 



Y-chromosome, 7,15, 79-82, 93, 172 

 Yellow, 54-58 



Z 



Zeleny, 135, 260 



