GENERAL AN/ESTHESIA. 6i 



This solution is also preferable for the dog. Ten minims are 

 given to animals of small size, twenty to forty minims to animals 

 of medium size, and sixty to eighty minims to large dogs. 

 Chloroform is administered at the end of twenty-five minutes. 

 This method produces deep and prolonged anaesthesia. There is 

 no danger of syncope. 



The cat is very susceptible to the action of most anaesthetics. 

 Death may result from giving an overdose, from pushing the anaes- 

 thetic rapidly, or from prolonging its action. 



A convenient method consists in placing the animal under a bell- 

 jar containing a small sponge or a tampon of wadding saturated with 

 chloroform. The animal soon loses consciousness and falls, when it is 

 removed and the operation performed. This method, however, is not 

 without danger ; the period of anaesthesia is short, and if repeated 

 inhalations are given there is some danger of the animal succumbing. 

 A modified Junker's apparatus is preferable. Miiller, of Dresden, 

 confirms the common experience that cats are poisoned in a few 

 minutes if chloroform be given rapidly, although they bear considerable 

 doses of ether very well. F'orty-five grains of chloral hydrate in the 

 form of enema also proved fatal. 



The combination of atropine, morphine and chloroform, as given 

 above, may be employed, but the cat, being extremely sensitive to the 

 action of morphine, which in it produces great excitement, the dose 

 should not exceed "002 grain insteadof'02grainperpound of body-weight. 

 Guinard recommends another method permitting of prolonged anaes- 

 thesia. He gives a hypodermic injection of hydrochloride of morphine 

 at the rate of "02 grain per pound of body-weight, and at the end of a 

 quarter of an hour to twenty minutes, when excitement diminishes, he 

 places the cat under a bell-jar with a sponge saturated with chloroform. 

 The animal should be removed when anaesthesia first appears, but inhala- 

 tion is best continued for a few moments afterwards. Thus obtained, 

 anaesthesia can be kept up for forty-five minutes. The excitement due 

 to morphine reappears as anaesthesia diminishes, and may persist for 

 some time. 



Negotin recommends Billroth's mixture (chloroform 3 parts, 

 ether and alcohol aa i part) or Wachsmuth's (chloroform 5, rectified 

 oil of turpentine i part) for dogs and cats. The ordinar^• 

 A.C.E. mixture (ether 3, chloroform 2, alcohol i) is better than 

 equal parts of ether and chloroform. 



Negotin had indifferent results in carnivora and horses with 

 bichloride of ethylene, and in cats and dogs with bromoform. 



