AND PERSONALITY 



The absolute and relative size of the brain, the thyroid, 

 and the adrenal glands fixes a gulf between the thyroidized 

 aborigine and the adrenalized ape. Let us now compare the 

 brain, the thyroid gland, and the adrenal glands of the 

 Australian aborigine with the brain, the thyroid gland, and 

 the adrenal glands of a Scotch laborer. In the case of the 

 Australian aborigine and the Scotch laborer, we have a 

 comparison between two thyroidized mechanisms differing 

 only in size. In the comparison between the Australian 

 aborigine and the chimpanzee, we see the gap between the 

 thyroidized human formula and the adrenalized ape 

 formula. 



In comparing these three energy formulas, it would 

 appear that intelligence, power, and personality are due 

 primarily to the absolute and relative sizes of the brain, the 

 thyroid gland, and the adrenal glands. However, we must 

 consider the contributory system that circulates the blood 

 adaptively, that digests food adaptively, that eliminates 

 waste adaptively, and that transfers glycogen from the liver 



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