Chap. XIX. 
SEXUAL DIFFERENCES. 
317 
brain is absolutely larger, but whether relatively to the 
larger size of bis body, in comparison with that of 
' v oman, has not, I believe been fully ascertained. In 
"Oman the face is rounder ; the jaws and the base of the 
skull smaller ; the outlines of her body rounder, in parts 
more prominent; and her pelvis is broader than in man ; 2 
but this latter character may perhaps be considered 
rather as a primary than a secondary sexual character. 
She comes to maturity at an earlier age than man. 
As with animals of all classes, so with man, the dis- 
tinctive characters of the male sex are not fully deve- 
loped until he is nearly mature ; and if emasculated they 
never appear. The beard, for instance, is a secondary 
sexual character, and male children are beardless, 
though at an early age they have abundant hair on 
their heads. It is probably due to the rather late 
"Ppearance in life of the successive variations, by 
"hi eh man acquired his masculine characters, that 
they are transmitted to the male sex alone. Male 
and female children resemble each other closely, like 
the young of so many other animals in which the adult 
sexes differ ; they likewise resemble the mature female 
much more closely, than the mature male. The fe- 
male, however, ultimately assumes certain distinctive 
characters, and iu the formation of her skull, is said to be 
intermediate between the child and the man . 3 Again, 
as tiie young of closely allied though distinct species do 
not differ nearly so much from each other as do the 
adults, so it is with the children of the different races of 
man. Some have even maintained that race-differences 
2 Ecker, translation in ‘ Anthropological Review,’ Oct. 1868, p. 351- 
356. The comparison of the form of the skull in men and women has 
been, followed out with much care by Welcker. 
2 Ecker and Welcker, ibid. p. 352, 355 ; Yogt, ‘ Lectures on Man,’ 
■® n g. translat. p. 81. 
