568 GENETICS IN RELATION TO AGRICULTURE 
bled the hybrid foals. They were chestnut in color without any sug- 
gestion of striping, and in liveliness of temperament or vigor of develop- 
ment neither of them resembled in the least the hybrid progeny. 
Fic. 222.—Jerry, a male Grevy zebra, Equus Grevii, used in U. 8. government breeding 
investigations. (After Rommel.) 
Fic. 223.—A registered Morgan mare, Baby Gates, used in U. 8. government breeding 
investigations. (After Rommel.) 
A subsequent experiment is of interest because of the closeness with 
which it agrees with particulars of the Lord Morton case. Ewart bred 
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