Pirate XX. 

 Castration of Cryptorchid Horse. 



Urino genital apparatus of 24 hr. colt. T, T, 

 testicle ; A, testicular artery ; G, gubernaculum 

 testis ; V, V, vas defereus ; B, urinary bladder ; 

 UA, umbilical arteries retracted within abdomen ; 

 P, processus vaginalis ; UV, umbilical vein. 



