CAUSE OF SEX 13 



male, which determines the gender of the 

 colt. 



Let us, mathematically, consider these 

 male and female tendencies or centers. 



In the stallion and in the brood-mare, 

 each always has 100% of tendencies. And 

 let us consider, for the sake of my combina- 

 tions, the relative percentage division of 

 each stallion's and each mare's tendencies 

 to be 100%. 

 A = Stallion = 100% tendencies, male and 



female. 

 B = Brood-Mare = 100% tendencies, male 



and female. 

 M = Male. 

 F = Female. 



Then, we have the following five combina- 

 tions of tendencies, and as many more as 

 you like, but always bear in mind that there 

 are, after breeding, 200% tendencies to 

 each offspring, 100% from each parent, and 

 the gender of each offspring will de- 

 pend upon whether the majority percent- 

 age of the tendencies at the mating is male 

 or female. 



