DISEASES OF THE HOG. 151 
the affected parts three or four times a day with a 
lotion made by mixing half.a dram of hydrocyanic 
acid to the ounce of water. Twenty drops of crea- 
sote to the ounce of lard rubbed on the parts once a 
day is very useful. In chronic cases use a solution 
of corrosive sublimate, three grains to the ounce of 
water. If the skin is hard I have found an oint- 
ment made by mixing one ounce of ichthyol and 
two ounces of vaseline to be very useful. The oint- 
ments of oxide of zinc, one to two, or iodine one to 
eight of vaseline are also beneficial. 
PEFIPHIGUS. 
This disease of the skin is characterized by blad- 
ders or elevations of the scarf skin varying from 
the size of a pea to a walnut, containing a yellow- 
ish transparent fluid and terminating in the forma- 
tion of ascab. This disease usually occurs without 
fever. The parts usually affected are the neck, 
sides, back and sometimes the outsides of the legs. 
They usually remain for three or four days, then 
break, form a scab and heal. It occurs most fre- 
quently in young pigs, but has appeared in adult 
hogs. The causes of this disease are obscure. It is 
supposed to be the result of an impaired condition " 
of the system and exposure to the hot sun. 
Treatment: Give one to two ounces of epsom 
salts and follow this by ten grains of nitrate of 
potass three times a day in the food. A complete 
change of diet is sometimes all that is necessary. — 
After the blisters break and discharge their con- 
