42 (234) DOMINANCE. REVERSED DOMINANCE RECESSIVENESS OF 
therefore can be considered as RR. So the solution is surely possible _ 
(see also p. 45). 
Family 337. The mother is microbrachycephalic. The sn 
grand-parents are macrobrachycephalic and We 
One child. 
Family 347a. The mother has a small head which i is nearly beach 
_ cephalic (79.5). The maternal grand-parents are brachycephalic with 
an average large head, and microdolichocephalic. One sister of the 
mother’s is brachycephalic (80.5) and two other sisters and a brother 
of hers are dolichocephalic (1920b, A 34c). So for the mother the con- 
stitution can be DR. The father is very much macrodolichocephalic, 
just as six brothers and sisters are, whereas the paternal grand-father 
is macrobrachycephalic (1920b, B 347). The indices of the eight children 
are 80, 80, 80, 80, 81, 81, 82, 83.5. This case, too, is an important and 
special one which agrees with the cases 324b and 245a. According to 
the data of the grand-parents we should feel inclined to accept here 
the formula DR x RR. Here, too, is then again prepotence of a 
heterozygous parent. 
Table VIII. Family 3q. The father and both paternal grand-parents 
are microdolichocephalic. Themother and both maternal grand- -parents 
are macrobrachycephalic (1920b, A 3a). Two children are dolichocephalic 
Accepting that, if in this family were more than 2 children, they would 
likewise be dolichocephalic, then we can explain this case either by 
prepotence of the dolichocephalic father or by recessiveness of the 
index of the mother who has a very large and very short head with 
a very high index which consequently almost belongs to the micro- 
brachycephalic type. AE 
Family 32c. The mother is microdolichocephalic, just as both matern- 
al grand-parents are. The father is microbrachycephalic. Five chil- — ‘ 
dren are dolichocephalic. This case agrees with 3q. i 
Family 73b. Here, too, the father and both paternal grand-parents 
are dolichocephalic. The father and the grand-mother have large heads, — 
the grand-father has a small one. The mother is microbrachycephalic. 
The maternal grand-father is microdolichocephalic, the grand-mother 
is macrobrachycephalic (1920b, A 73). 
Family 82c. This is an indistinct case. 
. Family 173a. The mother is HUGO Talslosrbabe et hates 

