468 OPERATIONS ON THE EESPIRATORY APPARATUS. 



neck. It is only required for about half an hour, until the hemor- 

 rhage has ceased, as it will prevent the entrance of blood into the 

 lungs while the horse is getting uj). and for a short time after- 

 ward respiration being carried on throvigh the tube. It ought 

 not to be left any longer, being liable to injure the interior of the 

 trachea. The blood being again removed from the larynx, one or 

 two syringe-fulls of the common salt or borax solution are inject- 

 ed into it and the pharynx. This washes out these cavities and 

 the sinuses of the head, a necessary precaution, as putrefying 

 blood in them sometimes gives rise to troublesome consequences. 

 Swallowing should be induced by touching the epiglottis, and 

 then the horse may be turned on his side, the lower margin of the 

 wound being depressed, to allow the remaining blood and water 

 to flow out. This completes the operation. 



" The horse is nowR^ allowed to recover from the chloroform? 

 and when ready he may be assisted to get upon his feet, care 

 being taken that the canula is not displaced while doing so. The 

 wound is kept open with the finger for a short time, to allow any 

 remaining blood to escape, and it is afterward cleansed away from 

 around the wound, the face and nostrils sponged to refresh the 

 patient, and if the weather is cold, the body clothed and the legs 

 bandaged." 



Method of Cadiot. — The special instruments required are a 



Fig. 408.— Blunt Bistoury. 



Fig. 409.— Curved SclsBors. Fig. 410.— Spring Tenaculum, or Dilator. 



blunt bistoury, curved scissors, whose blades are nearly perpen- 

 dicular to the branches, a spring tenaculum, a hooked or long 

 bull-dog forceps, a canula tampon, like that used by Fleming, a 



