319 



because the operator is inexperienced or the base of the 

 tumor is very large and too much bleeding would follow the 

 use of the knife. 



Clean the tumor and the skin around it with soap and 

 water; oil the skin around the tumor with lard or vaseline; 

 cover the raw tumor with a thick layer of pulverized copper 

 sulphate ; place a large wad of cotton over the tumor and 

 hold it in place by a bandage applied very tightly. (Avoid 

 cutting off the circulation by having a broad bandage and 

 plenty of cotton under the bandage during its application.) 

 Leave this bandage on for a Aveek ; keep the animal stand- 

 ing as quietly as possible, tied in a single stall. At the end 

 of a week, remove the bandage and if the tumor can not be 

 readily pulled away with the fingers, apply the pulverized 

 copper sulphate, the cotton and the bandage as before. 

 Keep up these weekly applications until the tumor is en- 

 tirely gone ; then treat the wound with prescription (a), (b) 

 or (c). It may be well to state that the bandage must be 

 kept fixed or it will irritate and thus stimulate the growth 

 of the tumor. 



This method of potential cautery can be used onl}^ when 

 the tumor is on a limb or in some place where a bandage 

 can be readily applied. In places where a bandage can not 

 be applied, the following caustic may be used : 



^. Arsenious acid (white arsenic). . . -i drachms. 



Caustic potash (stick) 2 " 



Gum arabic 4 " 



Pure water 1 fluid ounce. 



Mix and label "Poison." Thoroughly clean the tumor 

 and the skin around it ; oil the skin around the tumor with 

 lard or vaseline ; apply with a swab a thick layer of the 

 sticky mixture all over the free and raw surface of the 

 tumor ; tie the animal's head so that it can not reach the 

 tumor with its mouth, at least for one day. (In fact, it is 

 essential to devise some means to prevent the animal from 

 biting or gnawing the tumor or the healing wound, all the 

 time.) In ten or twelve days, the whole tumor or part of it 



