TUMORS. 24% 
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PARASITIC AFFECTIONS. 
We shall say nothing of the affections produced by insects, acari or 
fungi which live on the surface of the skin. The genera sarcophagus 
and /ucilla give larve which live as parasites upon wounds of men and of 
animals; Megnin has found on them the sarcophagus magnificent. In 
Holland the developed larvee of lucilla have been observed on sheep. In 
tropical countries the larvae of some meat-flies deposited on the umbilicus 
of young calves produce fatal inflammations (Friedberger and. Frohner). 
Cleanliness and washing with antiseptic solutions are sufficient to per- 
fect a cure. The ochromycis anthropophagus, or fly of Cayor, gives larvee 
which develop in the subcutaneous connective tissue of man and some 
animals (dogs, cats, goats). The small tumors that they produce disap- 
pear rapidly after the exit of the larvee, which can be assisted by a free 
incision. The connective tissue of pigeons contains sometimes a larve 
(hypodectes columbarum) which produces slight inflammation. 
During the summer season the hypoderma bovis lays eggs on the 
surface of the skin of cattle, which produce larve that perforate the skin 
and develop in the subcutaneous tissue. In the following spring tumors 
in various numbers are observed on the body of the animal, about the 
Size of a nut and resembling cold abscesses. These are due to the chronic 
inflammation caused by the presence of the parasites. The skin ulcerates 
and presents little suppurating wounds. The trouble can be prevented . 
by soaking the skin in appropriate solutions (oak-leaf decoctions, weak 
solutions of tobacco, aloes, asafetida). It has been recommended not to 
take the animal to pasture before ten o’clock in the morning during the 
warm season (from April to August). The larve that are thrown out 
before that hour fall on the floor of the stable and die, while they would 
develop easily in pastures. The larvee can be killed in their pouch by in- 
jections of benzine, turpentine, salt water, tar, or they can be cauterized 
with a red-hot stylet; but the best treatment is to freely incise them, taking 
"hold of the larve with forceps or extracting them by pressure. Simple 
cleanliness is sufficient to insure recovery. 
The subcutaneous tissue of horses and donkeys gives asylum to larvee 
which resemble much those of the Aypoderma bovis. These demand the 
same preventive and curative treatment. Te 
Filaria may produce in some animals cutaneous helminthiasis. Horses 
of Oriental breeds are subject to a special affection characterized by the 
eruption of “ hemorrhagic pimples.” During the warm season one may 
erous regions, especially the withers, neck, back and loins, 
from that of a hazel-nut to a large 
observe in num 
pimples in various numbers and sizes, ' to a lar 
nut. First oedematous 90 their periphery, slightly ecchymotic in the 
