62 THE BREEDING OF ANIMALS 



horse colt, the latter being considerably shriveled in 

 appearance. 



A case is reported by F. K. McGinnis of a Texas bred 

 mare belonging to Mr. Carmack. This mare was bred 

 several times to a stallion during a period of six weeks. 

 She continued to come in heat and the owner, conclud- 

 ing that she was sterile with the stallion, bred her to 

 a jack. She was mated with the jack a number of 

 times during a period of two weeks. Her owner, finally 

 despairing of ever getting the animal in foal, turned her 

 out. At the end of eleven months from the time the 

 mare was first bred to the stallion she dropped twin 

 colts, one a horse and the other a mule. Both were 

 dead at birth. 



An interesting example of superfoetation is recorded 

 by J. F. White of Whitesville, Missouri, who bred a four- 

 year-old mare to a saddle stallion on April 25, 1909. 

 She came in heat again and was bred to a jack May 29, 

 1909. She was again in heat June 12, 1909, and was bred 

 at this period to the saddle stallion first mentioned. On 

 May 11, 1910, the mare gave birth to perfectly formed 

 twin colts. One of these was a mule and the other a 

 horse colt. The mule died from illness at the age of three 

 weeks. The mule colt was a male. The horse colt was 

 a mare and developed into a perfect colt. These were 

 the mare's first colts. 



A draft mare belonging to J. C. Spies of Newark, 

 Missouri, was bred to a jack. Later she was turned in a 

 lot with her own two-year-old stud colt. The following 

 spring she foaled a mule and a horse colt. The mule 

 died at five days old. The horse colt lived and made a 

 good horse. 



Cases of superfoetation where the same animal is the 



