206 SEX 



the pituitary body, which never entirely loses 

 the increased weight gained in pregnancy. 



It is to be noted that while these anato- 

 mical sex differences may be very slight in 

 themselves, especially in non-typical indi- 

 viduals, the sum of them presents a picture 

 which is quite unmistakable. 



Tests show that the muscular strength of 

 men is much greater than that of women. Of 

 course the comparison must be made between 

 those physically trained. Miss Helen B. 

 Thompson's careful experiments confirmed the 

 general verdict that women have much less 

 muscular force than men. Feats like those 

 of Newhaven fishwives in bygone days are well 

 known; but on the whole man is the more 

 muscular type, and especially stronger in 

 relation to isolated feats and spasmodic efforts. 



Probably correlated is the quality often 

 called " energy," the characteristic mascu- 

 line restlessness. We may speak of woman's 

 constitution and temper as more conservative, 

 of man's as more unstable. Man is more 

 given to experiment both with his body and 

 his mind, and with other people. Compared 

 with women, men show greater frequency 

 of genius, insanity, idiocy, crime, and many 

 kinds of anomalies. In the same connection 

 we notice that man uses more oxygen and 

 combustible material, and has more waste in 

 consequence; that man's blood has a higher 

 specific gravity, more red blood-corpuscles, 

 more haemoglobin; that, in short, man is 

 the relatively more active type. 



Of some significance, again, is the relatively 



