Theory of Chance to Racial Differentiation. 117 



of satisfactorily resolving this material, and hold it best to 

 treat it as having: a homogeneous character but a skew 

 frequency *. 



Index 



y' , Observed ... 



67. 

 



68. 



69. 



70. 



71. 



72. 



73. 



74. 



1 



2 



9 



135 



35 



43-5 



49 



y, Calculated... 



-01 



"35 



2-31 



7-53 



16-97 



3041 



4657 



6332 



c, Difference ... 



u 



•65 



•31 



1-47 



4- 

 3 47 



4-59 



4- 

 3-07 



4- 

 14-32 





Index 



75. 



76. 

 89-5 



77. 



78. 

 112-5 



79. 



80. 



81. 



82. 



y\ Obsened ... 



88 



103-5 



97-5 



88-5 



89 



74-5 



y, Calculated... 



78-71 



9090 



9869 



101-61 



99-81 



93-99 



8544 



74-36 



e, Difference .. 



{ 9-29 



4- 



1-40 



4-61 



10-89 



4- 

 2-31 



4- 

 5-49 



3-86 



•14 



Index 



83. 



■84. 



85. 



86. 



87. 



88. 



89. 



90. 





y\ Observed ... 



62-5 



54-5 



295 



25 



23 



22-5 



125 



115 



y, Calculated... 



6274 



51-19 



4043 



3092 



22-89 



16-40 



1136 



7-60 



e, Difference ... 



(i 



3-31 



+ 

 10-93 



4- 

 592 



•11 



6-10 



1-14 



3-90 



Index .. 



91. 



92. 



93. 



94. 



95. 



96. 



97. 



Total. 



y' , Observed ... 



6 



1 







1 







•5 



•5 



1146 



y, Calculated... 



4-90 



3-04 



1 81 



103 



•56 



•29 



•16 



1146 



e, Difference ... 



(l-10 



4- 



204 



4- 

 181 



4- 

 •03 



4-- 

 -56 



•21 



•34 



— 



(4) In the previous investigation we have seen that sex 

 differences are not sufficiently marked, as far as the cephalic 

 index is concerned, to form a basis for the resolution of 

 unsexed material into its two components. On the other 

 hand, when we have a mixture of two markedly diverse races 

 we ought to be able to differentiate the components by my 

 method even if they should diverge somewhat from the normal 

 type. To illustrate this point Dr. Macdonell has dealt with 



* Like, of course., so many other homogeneous but certainly non-« 

 normal series. 



