200 



HALFDAN BRYN 



almost an index lower than in men, viz. 79,i, whereas in grown up 

 women in Tydalen index cephalicus was about an index higher than 

 in men, viz. 77,c. While the difference in index cephalicus in the men 

 from the two districts was 3,36 index, it amounts in the women 

 only to 1,43. 



A glance at the following tables shows at once that we are 

 facing a much complicated question. It will at once be seen that 

 the index of the offspring is not found to lie between the indices of 

 the parents. In no. 64 (table 8) the indices of the parents are 80,2 

 and 74,4, while the indices of the offspring sometimes lie below those 

 of their parents, viz. 74,5; 70,?; 72.3. In no. 41 (table 8) the indices 

 of the offspring lie higher than both parents, viz. 74,4; 76,3; 79,9; 76,o 

 the indices of the parents being 72,7 and 75,7. This peculiarity appears 



TABLE 2. 



Both parents and all their children have indices above SOfio. 



even more marked in no. 40 (table 8) where the offspring instead of 

 having an intermediate index reach far beyond those of their parents, 

 some higher and some lower, viz. 67,o; 68,o; 76,2; 78, i; 76,7, the indices 

 of the parents being 74,9 and 75,2. We have cases enough to prove 

 that this index is not inherited intermediately. Here is a marked 

 segregation. To ascertain to what extent this segregation takes place, 

 and to show which principles it follows, it becomes necessary to arrange 

 the parents according to their indices and to compare these values with 

 those of their offspring. I shall start with the highest indices. In 

 tiable 2, 5 families have been placed in which parents as well as 

 offspring have indices above 80. In the group of parents as well as in 

 their offspring the index fluctuates between 80 and 90. In the 

 group of parents the index is on the average 82,6, in the offspring» 



