40 
ON THE NAVICULAR DISEASE. 
upon tlie.system at large or the alfected part. The general health 
of the animal appeared good ; he ate heartily, supported his con¬ 
dition, and the febrile symptoms which were-present at first had 
quite subsided, the pulse being stationary at 35; yet the dis¬ 
charge from the left nostril continued, and the swelled gland had 
increased in size, and was still adherent to the bone and extremely 
hard. 
Notwithstanding these suspicious circumstances, I could not 
acknowledge to myself that glanders was established ; but having 
been disappointed in my expectations of succeeding by the above 
treatment, I altered my plan, and applied a strong blister to the 
enlargement. 
On the 11th the hardness was not so great, but, as the blister 
had not taken so much effect as I wished, I repeated it, and on 
the 13th fluctuation was evident: consequently I gave vent to the 
matter, of which about eight ounces escaped. A poultice of lin¬ 
seed meal was applied, and the orifice kept open a few days; 
the discharge from the nose gradually ceased entirely, and the 
animal has been at work ever since in perfect health. 
Since that time I have had several similar cases, characterized 
by the same symptoms, and successfully treated in the same 
manner. 
In the preceding case I have an excellent illustration of the 
beneficial effects of the chloride of lime; for I think I never saw 
a wound heal more kindly than did the quondam rowel under its 
influence. 
ON THE NAVICULAR DISEASE. 
By the same. 
It is Professor Coleman’s doctrine, that the Navicular Dis¬ 
ease is always gradual in its approach—that, in consequence of 
certain states of the hoof, the navicular bone is thrown nearly 
out of use—that the secretion of synovia is greatly decreased 
thereby—that this decrease is felt first in the very centre of the 
bone, because of a protuberance there adapted to a correspond¬ 
ing depression in the flexor tendon, and that inflammation is thus 
produced by want of use, &c. &c. Now I do not intend to en¬ 
ter into a theoretical inquiry with regard to the stability of 
these opinions, but will briefly relate a few cases, selected at 
random as they present themselves to my memory ; thus adding 
my humble testimony to the fact, that whatever be the predis¬ 
posing cause, the absolute occurrence of the disease is fre¬ 
quently quite sudden.—Early in September last, a bay mare, 
