INTELLIGENCE, POWER, 



The combined values of the brain and the thyroid and 

 adrenal glands, based on the power formula, are as follows: 



BRAIN-THYROID-ADRENAL VALUE 



Nureddin 1.721 



Zebra i . 745 



Equipoise 1 . 764 



Shetland pony 2 . 004 



In Dr. McKay's account of the rise of the thoroughbred 

 horse, we note two component facts: 



1. In the crossing of the Arab, Turk, and Barb with the 

 native mares of the north, there appeared occasionally a 

 superior horse. This is typical of mutation. 



2. As these superior mutants appeared in increasing 

 numbers, the percentage of superior horses increased. 



The summation of the mutation of the horse by crossing 

 the desert-bred stallion with the cold-bred mares was seen in 

 the horse Eclipse, which represents the pinnacle of this 

 transformation. In other words, according to the power 

 formula, the energy-controlling system of the cold-adapted 

 Shetland pony shows a degree of development 1.15 times 

 greater than that of the thoroughbred American stallion 

 Equipoise. 



It would seem that further crossing between the offspring 

 of Eclipse and the Arabian, the Barb, and the Turk would 

 not advance the present thoroughbred, nor would crossing 

 with the native mares advance the thoroughbred. The 

 thoroughbred would now seem to have a career of its own 

 that began with the appearance of Matchem, Herod, and 

 Eclipse. 



If there has been no further advance by the crossing 

 (from time to time) of the desert-bred stallions and the 

 northern mares, how, then, can we account for the fact that 

 in these years the thoroughbred has advanced as to speed, 

 conformation, and height? 



This brings us to the second point of great interest in the 

 account of Dr. McKay, namely, that the advance was 



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