182 



INDEX 



Relationship coefficients, 133 "ff. ; 



defined, 143, 145. 

 Resemblance between individuals, 



3, 10, 15, 64. 

 Ritter, 55. 

 Royce, 14, 74, 85, 88. 



Saturation, 172. 



Scott, 165. 



Segregation, 25, 45, 174. 



Selection, 15, 48, 175. 



Sex chromosomes, 26. 



ShuU, 17. 



Single cousins, 121, 122, 125. 



SkewTiess, 81. 



Somatogenesis, 5, 12, 35. 



Specificity, germinal, 8, 12. 



Specificity, somatogenic, 5, 8. 



Spillman, 24. 



Statistical knowledge, 73 ff. ; an- 

 alysis of, 79; exactness of, 

 81. 



Statistical method, possibilities 

 of, 83. 



Statistical probabiUties, 92. 



Strang, 102. 

 Surface, 16, 58, 66. 

 Symmetry of distributions, 81. 

 Systematic zoology, 56. 



Telegony, 172. 



Tobacco, selection experiments 



with, 16. 

 Tretsven, 168. 

 Trow, 27. 



Uncle X niece mating, 126 ff. 

 Unit characters, 173. 



Valentine, 166. 

 Variability, 8. 

 Ven\'orn, 41. 



Weldon, 42. 

 Wheat, yield of, 166. 

 Whitten, 166. 

 Williams, 166. 

 Wilson, 33. 



Yule, 22, 71. 



n. C. State College 



Printed in the United States of America. 



