XIV, 3 Acosta-Sison and Calderon: Pelvimetry 259 
mixture from Europe — have all influenced our composite pop- 
ulation. If it were possible to compare the measurements 
made in our investigation with the considerable series of others 
from all the different racial types just mentioned, we might 
hope to arrive at certain tentative conclusions. However, since 
practically no pelvic measurements from the regions mentioned 
