126 FISTULA AND POLL-EVIL 
time of the operation. After the ligament has 
been removed, a sound can sometimes be passed 
downward five or six inches before it touches 
the bottom of the cavity. 
Chronic Septicemia co-exists to a certain ex- 
tent in all bad cases of poll-evil. It is, however, 
less serious than in fistula of the withers, since 
the region is smaller. 
