148 THE VETERINARY SCIENCE. 



BLINDNESS (AMAUROSIS) OCCURRING AFTER CASTRATION. 

 This disease is sometimes noticed to come on an animal after 

 he has been castrated, especially if he bleeds freely at the time. 

 This disease is mentioned more fully in connection with the dis- 

 eases of Unw! eye. 



CASTRATING ORIGINALS OR RIGS. 



This is where the testicles do not come down into the scrotum 

 or bag, but remains up in the abdominal or belly cavity. The 

 cause of this is not fully understood. In a case of castrating a 

 rig- it is advisable to have an expert who pays special attention to 

 this branch of castration to do it. If the testicles are not down 

 at a yearling it is best to let the animal run over for a year or so, 

 for the testicles often come down themselves. In some cases one 

 testicle will be down and the other up, while again neither of the 

 testicles will be down. 



THE DIFFERENT MEDICINES USED IN LOADING THE CLAMPS. 



Some use biniodid of mercury or red precipitate — 2 grains to 

 an ounce of lard or vaseline, but the green salve, the receipt of 

 which is at the back of the book, is what we recommend and use. 



CHAPTER XII. 



RUPTURES (HERNIAS) AND THE MODES 

 OF TREATING THEM. 



NAVEL OR UMBILICAL RUPTURE. 



This is where the navel opening does not become properl}r 

 closed at the tune ot Du'tn, ana tiic ooweis come uown through 

 the opening in the rim of the belly and forms a pouch or sack in 

 the skin, the size of which varies from the size of a hen's egg to 

 larger than a goose egg. This is a miserable blemish and is best 

 to be treated in the spring of the year, when the colt is a year or 

 two old. 



Treatment. — Prepare the animal by starving it twenty-four 

 hours, then throw and secure him, shove the bowel well back and 

 draw the skin well up and put a heavy stiff clamp on it, secure 

 both ends of the clamp with stout cord and run a few darning 

 needles through the skin below the clamp, this will keep the clamp 



