164 III I : GLANDS REGULATING PERSONALITY 



and quick-tempered when his thyroid and adrenals respond to 

 the call of the interstitial cells. If they do not, he will become 

 dull, heavy, lazy and listless. The girl correspondingly is trans- 

 formed into a vivacious, gay, nervous and apprehensive butterfly, 

 or a sedate, dreamy, bashful, or even morose moth. It is in' 

 esting to note that poise, mental equilibrium, is not established 

 until physical growth ceases, marked by a cessation of growth 

 of the long bones known as ossification of the epiphyses. Poise 

 seems to be controlled by the ante-pituitary. The growth of the 

 long bones is also dominated by the ante-pituitary. It would 

 seem as if, its secretion dedicated to the one function, could not 

 be available for the other. So it happens that those in whom 

 growth ceases early (probably because of an earlier and more 

 >rous invasion of the internal secretion system by the inter- 

 nal cell product), develop mental maturity more rapidly and 

 possess more of it than those in whom growth continues. 1 

 acumen and salacity of certain dwarfs is proverbial. The puberty 

 phenomena teach that sex crises of every sort are dependent 

 fundamentally upon fluctuations, periodic or aperiodic, of the sex 

 index, as we have defined it. 



The Determining Factors of Sex Life 



The material summarized in the preceding paragraphs fui 

 some slight inkling of the vast dominion of Sex, in all r 

 tions, somatic and spiritual, over which the glands of internal 

 secretions rule. The founder of modern pathology, Yirehow, 

 said that woman is woman because of her ovaries. H 

 that woman is a woman, the sort of woman she specifically 



:iuse of tor internal secretions. But no divine dec; 

 laid down • line of cleavage between man and woman. Ti 

 are fundamental constitutional difierci. D man | 



woman. But it is just as true that man is man because of 

 internal secretions. 



have seen that the < of Man and W N the 



end-points of a curve Including variations of 



construction of a sex in I 

 Ithough 



well fr rtl ! 



day, year to ye. the influences thai 



brought to bear upon H 



/lirce planes of orine, thi M©« 



