THE USE OF AN AESTHETICS IN VETERINARY PRACTICE. 7 57 
those in whom debilitating influences, such as hunger, loss of 
blood, etc., can reasonably account for the susceptibility to 
the undue action of the anaesthetic. In young and vigorous 
animals, a greater power of resistance counteracts a tendency 
to these changes.” 
Giving credit to the above experiments it is apparent that 
chloroform anassthesia produces a marked effect upon the 
dog, and I think we may safely conclude that ether, or a mix¬ 
ture of alcohol, chloroform and ether is a safer anaesthetic for 
that animal. 
In my experience with anaesthetics in dogs, I have nearly 
always used the alcohol, chloroform and ether mixture: one 
part of alcohol, two of chloroform, and three of ether, with 
the happiest results. 
1 do not know the exact number of dogs I have anesthe¬ 
tized with this agent, and while my canine practice is very 
limited, compared with that of some veterinarians, yet I have 
spayed about fifty bitches, castrated a few males, and per-' 
formed other operations under anesthesia, so that I think I 
have given it to dogs about seventy-five times without a fatal 
result. 
In anesthetizing the dog I use a funnel-shaped bag, made 
of gum cloth, the same as is used in making storm cloths for 
carriages. 
Upon a few occasions temporary respiratory arrest has 
occurred, but in these cases normal respiration resumed after 
the removal of the bag from the nose, a little shaking, and a 
backward and forward movement of the fore-limbs. More 
difficulty was experienced in one case. It was a setter dog 
that was being anaesthetized for the purpose of amputating 
his tail. The dog struggled violently as soon as 1 put the 
muzzle to his nose, and, instead of removing it and giving 
him a little air, as I should have done, until he quieted down 
and became accustomed to it, I held it to his nose until he 
quit struggling, when I noticed that he had also quit breath¬ 
ing. I shook him, pumped his legs, and pulled out his 
tongue, yet he appeared lifeless. I then stepped to the pump, 
a few yards away, pumped some water, and dashed it on his 
