232 



PRINCIPLES OF VETERINARY SURGERY 



the state, just so fast must the ansesthetic be given. The 

 aim is to keep the subject at a. perfectly safe distance from 

 syncope, and yet prevent the reflexes from returning. 



MODE OF ADMINISTRATION.— There are various 

 apparatus recommended for the administration of anaes- 

 thetics to animals, but no one is more practical and satis- 

 factory than the plain rubber or oil-cloth sheet and sponge. 

 The adjustable nose-bags are rather treacherous and al- 

 ways somewhat difficult to manage. 



Horse. — The subject must be securely tied in the re- 

 cumbent position to meet the requirements of the violent 



Fig. 29. 

 Administration of Chloroform. 



Struggles that are certain to ensue. The rubber sheet, 

 which s-hould be about oneyard square, is spread out under 

 the head with about one-half of its surface extending in 

 front of the muzzle. The sponge, which should be of medium 

 coarseness and large enough to hold two or three ounces of 

 the anaesthetic without dripping, is sprinkled with the 

 chloroform., placed in front of the nostrils and the sheet 

 gathered up over it. The anaesthetist lies flat upon the 

 horse's head and holds the sheet rather loosely around the 

 nose, behind the nostrils. On the operating table the 

 anaesthetist leans over the poll from behind forward, rest- 



