RESEARCHES INTO ANTHROPOLOGICAL HEREDITY 



201 



however, somewhat higher, viz. 83,2. I suppose that all of them 

 belong to one and the same brachycephalic type. One of the parents 

 at least is probably homozygotic, the other may be a heterozygote. 

 The children will then all belong to one and the same B-type; some 

 of them will be homozygotes, some heterozygotes. // there are he- 

 terozygotes among the parents the B-type will have to be dominant to 

 the foreign type, whichever this type is. In this case the index of 



TABLE 3. 



One of the parents has an index above 80,0 the other between 



75,0 and 79,9. 



TABLE 4. 



One of the parents has an index above 80,o the other below 75,o. 



the parents' group is somewhat lower than that of their offspring. This 

 may be due to the small number of individuals in the group. The 

 group contains too many -^variants. The group of offspring is con- 

 siderably larger and therefore approaches more closely the correct 

 average index of the type, which probably will be about 83 à 84. In 

 the case where the index of the parents is considerably below 83 à 84, 

 the average index of their offspring will be seen to be higher than 



