AND PERSONALITY 



energy-controlling systems of the walrus and the rhinoceros 

 is that of energy behavior, which is always reflected in the 

 size of the adrenal glands. In the hot-tempered, rushing 

 rhinoceros, the adrenal glands are 3.79 times larger than 

 those of the even-tempered, slow-going walrus, as indicated 

 by the following comparison: 



POWER FORMULA VALUES 



In other words, although this young adult rhinoceros was 

 larger than the walrus, the brain of the cold-adapted 

 walrus was 2.07 times larger than the brain of the tropic- 

 adapted rhinoceros, and the thyroid gland of the walrus was 

 1.49 times larger than the thyroid gland of the rhinoceros. 



These two outstanding animals of the arctic and the 

 tropics illustrate the influence of cold and heat upon the 

 size of the brain and thyroid gland. This principle applies 

 equally to the habitat temperature of the races of man. 



In a comparison of 28 tropical rodents with 123 subarctic 

 ones, 15 tropical Carnivora with 23 subarctic ones, 14 tropical 

 ungulates with 4 subarctic ones and in an examination of 

 8 white whales, Dr. Quiring, by means of the relative- 

 growth equation, found the degree of brain development to 

 be markedly larger in the subarctic rodents and Carnivora 

 than in the tropical ones. The brain was larger in the 



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