Diseases of the Skin.—External Parasites. 207 
tion afforded by the hair, and is not unnecessarily severe, as, 
without shaving, the loss of hair is certain to be very great, 
and much hair hides from view the first symptom of new 
centres of disease. j 
“ Considering the damage done to the roots of the hair, we 
should expect but a very partial reproduction of the coat. 
It is, then, satisfactory to be able to state that it is thoroughly 
and completely restored when the parasite is got rid of, save 
on any small spot where the skin was so damaged as to be 
repaired by cicatrisation. 
“ The proper recognition of this disease is the most impor- 
tant part, because many dogs will not pay for three or four 
months’ treatment, and because this dressing is unnecessarily 
severe for ordinary mange, and decidedly injurious to those 
cases of skin disease due merely to constitutional disturb- 
ance. Very young or very small dogs must be treated 
carefully, as the dressing is apt to affect them injuriously. If 
lessened in strength it is not certain to destroy the para- 
site.”* . 
“Ziirn asserts that he has frequently succeeded with an 
ointment composed of one part of benzine to four of lard. 
Weiss recommends the inunction of essence of juniper. 
Zundel states that the balsam of Peru has often yielded 
good results when the malady has not been of too long 
duration. He has employed it, dissolved in alcohol (one to 
thirty) ; he has likewise used the green iodide of mercury 
with success, as well as the nitrate of silver ointment. 
Hoper speaks highly of an ointment composed of carbolic 
acid ; and Vogel prescribes a solution of caustic potash.”+ 
ECZEMA. 
This disease, which is commonly known as “blotch” or 
“red mange,” is a frequent and troublesome affection with 
* Hunting, “Diseases of Dogs,” “ Live Stock Journal and Fancier’s 
Gazette,” February 11th, 1876. 
} Fleming’s “ Veterinary Sanitary Science,” vol.i. p. 459. 
