INHERITANCE IN ABNORMALITIES 



427 



continuous, and gave rise to 16 generations. Two normals and 

 18 abnormals appeared in the observed cultures of this line. 

 The proportion of abnormality (79 per cent) shown by all these 

 lines-taken together is much higher than that shown by the race 

 as a whole (56 per cent). Figures 13 and 14 give part of the 

 pedigrees of three of these lines. 



TABLE 11 



Data from the 24 lines of Race A in which the selection of abnormals was 



continuous 



