400 INFLAMMATIONS. 
“blotch,” is also very common, showing itself chiefly at the roots 
of the nails, where there are considerable redness and swelling, 
and so much tenderness as to make the dog quite lame. In 
bad cases, when the constitution is impaired by defective kennel 
arrangements, the sores become very foul, and are then very 
difficult to heal. In order to remove this state of things, the 
general health must first be attended to, using the same means 
as in“ blotch” if the cause is the same, and touching the sores 
themselves with bluestone, which should be well rubbed into the 
roots of the nails, first scraping it to a fine point. When. the 
health is much impaired and the sores are in the foul state 
déscribed above, give from five to eight drops of liquor arsenicalis 
with each meal, which for this condition should be of good nour- 
ishing food. This remedy must be continued for weeks, or even 
months in some obstinate cases. Here, after applying the blue- 
stone, it is often of service to rub in a very little tar-ointment, 
and then dust all over with powdered brimstone, dipping the foot 
into a box of it being the best mode of applying it. 
, Foul mange (resembling the psoriasis of man in its nature) is 
a most unmanageable disease, inasmuch as it has become quite 
constitutional before it can be so designated, and because, being a 
disease of the blood, it requires a complete change in the com- 
position of this fluid before it can be eradicated, It is doubtful 
whether mange is contagious, but that it is hereditary I have 
no doubt whatever, the proofs within my own knowledge being 
amply sufficient to convince me of the fact. Thus I have seen a 
bitch apparently cured of it, and with a perfectly healthy skin, 
produce a litter of whelps all of which broke out with mange at 
four or five months old, though scattered in various parts of the 
country at their walks; the bitch afterwards showing the im- 
purity of her blood by spain and again becoming the subject of 
mange. I should, therefore, never breed from either a dog or 
bitch who was attacked by this form of eruption. There is 
considerable thickening of the skin, with an offensive discharge 
from the surface, chiefly flowing. from the cracks and ulcerations 
under the scabs on it. This dries and falls off in scales, taking 
with them a good deal of the -hair, which is further removed by 
the constant scratching of the -poor dog, who is tormented with 
n 
