INTELLIGENCE, POWER, 



survival value largely to the mechanism of seeing, which 

 brings awareness to the mechanisms of locomotion and 

 manipulation. 



From the organ of Corti, the nerve mechanism of hearing, 

 there are communications with millions of brain cells con- 

 stituting the center of hearing in the cortex of the brain. 

 From each of these brain cells a fiber communicates with 

 the infinitely intricate mechanism of the thinking brain. 

 From the thinking brain these impulses of hearing are 

 broadcast to the motor centers in the cortex and, from these, 

 to the various muscles and glands of the body. 



A mechanism possessed by no other animal except in 

 rudimentary form is the unique gift to man of the evolu- 

 tion of speech. The speech center, although related to the 

 ear primarily, also consists of millions of brain cells in the 

 cortex of the brain. The brain cells constituting the speech 

 center are connected by nerve fibers with the mechanism 

 of the thinking brain. By this means the work of the think- 

 ing brain, or thought, is expressed in spoken or written 

 language. 



Upon analysis, it will be seen that the mechanism of hear- 

 ing, like the mechanism of speaking and, to a large extent, 

 common sensation supplement the other mechanisms. 

 Coincidentally with these mechanisms, as an axis partner, 

 there was evolved a corresponding rise in the expansion of 

 the mechanism of the brain for thinking that has little or 

 no counterpart in the wild and the domestic animals. Thus 

 the brain of the lowest order of man is separated by a wide 

 gulf from that of the highest apes. 



In the course of the vast evolution from ape to man, 

 there is no corresponding change in the mechanism of 

 respiration, in the action of the heart and the circulation 

 of the blood, in digestion, in the function of the kidneys, 

 or in the mechanism of procreation. These organs and 

 tissues are necessary to the maintenance of life itself. By 

 these organs and tissues basal metabolism is effected. 



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