SENSE AND SPEECH IN MAN. 245 



humanity, is most exposed to external influences in the accom- 

 plishment of his daily labour, is provided with a covering for 

 head, face, trunk, and limbs, sufficient to afford that kind 

 and amount of protection which the nature of his economy re- 

 quires in the varied circumstances of climate and occupation. 

 To a certain extent, and co-ordinate with her conditions of 

 life, integumentary arrangements of a similar kind are pro- 

 vided for the other sex. These protective arrangements of the 

 hair in man are, however, altogether subordinate. The prin- 

 ciple which determines the distribution of hair on the human 

 body, appears to be based on the higher form of the emotional 

 and aesthetic phases of the human constitution. The charac- 

 teristic aspect of the human frame is undoubtedly due in great 

 measure to that peculiar variation in the hair development of 

 its different integumentary areas ; and no one who considers 

 the subject in all its bearings, can fail to observe the remark- 

 aide co-ordination which exists between these corporeal 

 attributes, and the emotional phase of human consciousness. 

 In no animal is the direction or arrangement of the hair so 

 complex as in man. 



h. The sensibility of the human skin is its most important 

 physiological feature. No animal displays a cutaneous nervous 

 system so developed as the human. 



/. The plan of distribution of the cutaneous nerves of the 

 trunk in man, and the higher vertebrata, is identical. But in 

 consequence of the erect attitude in man, the six rows of 

 cutaneous nerves, two posterior, two anterior, and a right and 

 bit Lateral, are vertical instead of horizontal The vertical 

 arrangement of these rows of sensitive skin areas, on the front, 

 sides, and back of the body, are thus specially associated with 

 th.it erect attitude, which we have already seen to be a m 

 sary corporeal co-ordination with that faculty of tin; human 

 mind, by which we are enabled to think in space. 



»/. The human skin i. characterised by the precision of its 



