SYMPTOMS 123 
veterinarian is either found as an enlargement 
on one or both sides of the poll or else as a sup- 
purative condition that matts the hairs of the 
mane and soils the region with dried pus. 
As the disease progresses the patient be- 
comes distinctly unthrifty in appearance and 
loses flesh. Locomotion is slow. The patient 
gropes about and trots only when urged. Feed- 
ing from the bottom of the manger and grazing 
is painful. 
Later, as nervous complications develop, the 
hind quarters wabble inordinately and rising 
becomes more and more difficult. Finally the 
failing subject, unable to stand, dies from de- 
cubital complications, if it is not sooner killed 
to end its misery. 
Complications 
Paralysis ——The most serious complication 
is paralysis due to advancement of the inflam~ 
matory process into the meninges, the cord and 
even the brain itself. The invasion is usually 
at the atlanto-axoid space, but sometimes oc- 
curs through the occipito-atlantoid articulation. 
When these nervous structures become in- 
volved early in the progress of the disease, the 
case is not necessarily a hopeless one because 
of the nerve involvement, since an operation 
which evacuates the pus externally may turn 
