Abstract
Hereditability of the ear-dimensions is studied on the material of 505 Japanese people (367 males and 138 females). Measured items and indices are :
(1)physiognomical ear-length (sa-sba),
(2)physiognomical ear-breadth (pa-pra),
(3)morphological ear-breadth (obs-obi),
(4)length of lobule (sba-)
(5)physiognomical ear index ((1) : (2))
(6)length-breadth index ((1) : (3))
(7)lobule index ((1) : (4))
Author's conclusions are as follows :
(1)No local differences of ear-dimensions are approved.
(2)Distribution and mean values are shown in Table 2-4.
(3)Deviations outside of these deviations limits may be considered as due to the differences of genetic factors.
