INTELLIGENCE, POWER, 



at all approached by any land animal in the tropic or the 

 temperate zone. 



Thus not only did we find that the. brain, the heart, and 

 the thyroid gland in the warm-blooded animals in the cold 

 north and in the cold sea were larger than in the warm- 

 blooded animals of comparable weight in the tropics and 

 the temperate zones, but we found also an increase in the 

 size of the heart and in the volume of blood in the warm- 

 blooded land animals in the cold north and in the cold sea. 



The largest white whale that we collected weighed 

 1217.5 pounds. The blood of the white whales showed a 

 high oxygen content, the hemoglobin being approximately 

 20 per cent higher than that of man, and there were vast 

 numbers of blood vessels holding reserve supplies of blood, 

 hence of oxygen. 



On what basis do the white-whale family and the human 

 family exhibit surprising analogies ? The human family and 

 the white-whale family breathe the same rich oxygen of the 

 air. Each has a large development of the brain. Each has a 

 great thyroid gland. The thyroid gland in its location in the 

 neck, in its connecting bridge between two flattened lateral 

 lobes, is of precisely the same pattern in the human being 

 as in the white whale. 



We are indebted to Harry C. R. Darling, F.R.C.S., of 

 Sydney, Australia, for the energy-controlling organs of an 

 Australian aborigine. In the brain of this aborigine, in the 

 brain of the white whale, and in the brain of the porpoise 

 there are marked resemblances and marked differences. 

 The brain-to-body weight ratio in the aborigine weighing 

 76.2 kilograms (168 + pounds) was 1:56; in a porpoise 

 weighing 142 kilograms (313 + pounds) it was 1 182; and in 

 a white whale weighing 552.25 kilograms (1,217+ pounds) 

 it was 1:235. According to the power formula, the values 

 for the brains were as follows: 



White whale ".". '. '.". '. . . .". '.".' . ." 2 . 301 



Porpoise ...... . : 2 . 737 



Australian aborigine * 3 . 080 



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