INFECTIOUS ARTHRITIS. 551 
-our clinic in August, for a femoro-tibial arthritis ; we treated it with needle 
firing. After six weeks, recovery was complete. Blistering frictions 
with nitrate of mercury have. been recommended (Heu), or those of 
bichromate of potassa (Guittard). Furlanetto prefers this in the pro- 
‘portion cf 4 parts of bichromate to 30 of lard. Pauleau has obtained 
“numerous successes with cauterization by sulphuric acid. Out of 806 
-cases treated, he only had 57 failures. He proceeds as follows: 
“ He takes half a decilitre of sulphuric acid sold in commerce and a 
“brush made with a wooden stick, as big as the finger, having a little 
pad of old linen at one end. The hair is cut over the pre-eminent 
‘tumors. The head of the animal is held firmly by an assistant ; another, 
‘placed on the side opposite that to be operated on, takes hold of the 
“tail with one hand and of the teats with the other; he pulls towards 
-him the mamme to isolate it from the sick leg, and permits the ap- 
‘plication of the drug on the inside tumor. The mammez is covered 
-with a coat of greasy substance to protect it from the contact of the acid. 
“With the brush dipped in sulphuric acid, the surface of the tumor is 
-frictioned. A simple embrocation would not be sufficient, a friction of 
‘one minute is necessary. Care is taken so that the fluid does not 
-spread beyond the diseased parts, nor drop between the toes. If the 
-animal is affected on both sides together, it is better to operate on the 
“second leg only four or five days after the first. The operation done, the 
animal is returned to her barn and tied short to prevent her biting her- 
self. After fifteen minutes she is left loose. If the cow show articular 
‘ancinating pains, it is proper to make, on the diseased part, several 
frictions with camphorated alcohol, and only after four or five days, 
when the animal begins to rest on his leg, to apply the radical treat- 
-Ient. 
“Two days after the friction, the external enlargement is entirely 
‘flattened, the internal has diminished in size only. The skin, covered 
with scabs, has the appearance of being tanned. There is scarcely any 
-swelling round the eschar. However, in fine skin individuals, the 
‘tumefaction may become very large and run down along the leg. I 
prescribe only frictions of camphorated alcohol with the addition of a 
‘little ammonia (1 part in 20). 
“ Fifteen days, three weeks, perhaps a month or more will pass before 
‘the scabs become loose. Even when the skin is destroyed in its whole 
thickness, there must be no fear about the sloughs of skin which take 
‘place especially at the internal face of the joint, where during walking 
there are constant rubbings ; those sloughs recover perfectly. 
“In summer, the wounds are dressed with empyrheumatic oil to keep 
flies away; in winter tincture of aloes or spirits of turpentine is used. 
