204 
J. C. MEYER, .TR. 
for the fact that non-infected stables use the same water. The 
disease originating from common colds is out of the question. It 
makes its appearance during the months from October to May. 
Its acute inflammatory rheumatic form is most striking from Jan 
nary to April. 
SYMPTOMS. 
A gradual failing of the appetite is first observed. Some 
horses quid their food, owing to the soreness of the maxillary 
bones. Pressure on the inferior maxillary bone gives rise to pain, 
indicated by the horse throwing his head to one side, partly open 
ing the mouth and drawing away. The flanks become drawn up¬ 
wards, the coat is staring. Lameness of one or more limbs is 
present. There may be a general stiffness, characterized by short 
steps due to a diseased state of the vertebral column. When 
driven the horse will sweat and tire easily, while in the stables he 
lies down a greater part of the time to rest. The seat of lameness 
is for the most part in the lower portions of the extremities. 
Lameness occurs in some cases by degrees, in others instantane¬ 
ously and violently—as though they had stepped on a nail. In 
the former the symptoms are not very strong, while in the latter 
a febrile condition is quite apparent, characterized by swelling, 
tenderness and heat of the ankle down to the hoof. Twisting or 
extending the foot is very painful. By sounding the foot pain is 
experienced at the point of the frog, a peculiar symptom, which 
causes us to infer that it is a bruise or that a foreign substance is 
in that vicinity, but which is nothing more than pain produced by 
a concussion conveyed to the tendonous insertion of the flexor 
pedis perforans. 
If lameness be present in one or more limbs the pain is exeru 
dating; the patient lies down almost continually, and when urged 
to rise he will get up with difficulty—lie trembles, arches his back 
and breathes rapidly with nostrils distended, and acts like a case of 
severe laminitis. When in this condition it often happens that he 
partially or completely breaks down in one or more of his limbs. 
This complication calls forth additional symptoms. The ankles 
of the broken down limb drop, in some cases touching the ground. 
