American Veterinary Review, 
NOVEMBER, 1881. 
ORIGINAL ARTICLES. 
THE HORSE’S FOOT, 
By A. Zundel. 
(Continued from page 274.) 
Corns —( Continued). 
IV. Pathological Anatomy .—The lesions vary according to 
the severity of the disease. In dry corn, we find an infiltration 
of blood in the horny structure. This is blood which has transu- 
dated through the laminated or irritated velvety tissue from the 
injured blood vessels. This blood gives to the hoof various tints, 
more or less pronounced, not unfrequently yellowish, according 
to the intensity and duration of the disease. The hoof sometimes 
loses consistency and becomes brittle; at others it is hard and 
dry, and then resembles healthy hoof minus its coloration. If 
the ecchymotic spot involves the whole thickness of the horn, 
from its surface to its depth, it is an evidence of the continued 
activity of the cause. A deep mark indicates a recent injury; a 
superficial one is an evidence of an older corn, which disappears, 
and then it seldom produces lameness. Sometimes the marks are 
arranged in layers, the healthy horn being alternated with others 
