AND LECTURES. 59 
the only disease which has a limitation to the pulse. When 
it reaches 85 beats a minute the patient has only 15 or 20 
minutes to live unless we can give immediate relief. When 
pulse reaches 85 beats per minute we have but one re- 
source left and that is to tap sufferer on the left side half 
way between the end of the last short rib and the point of 
the hip. It is very dangerous to tap a horse before pulse 
reaches 85 beats per minute for the colon has not reached 
the diaphragm. Experts may tap on the right side, but I 
would not advise inexperienced hands totry it In tap- 
ping use a knife with a blade about a half inch wide and 
about two and a half inches long. After incision is made 
introduce a trocar or quill to permit the escape of gases. 
Rupture of the Stomach or Diaphragm. 
Hither of these may occur in violent cases of wind colic 
and both are fatal, this being the case we simply give 
causes and how to know it, without any treatment. 
Cause—In mostcases this trouble is brought on by ex- 
cessive generation of gases in wind colic, these gases dis- 
tending the stomach beyond its capacity, thus producing a 
rupture, or else forcing the colon up against and through 
the diaphragm. In runture of the stomach the partially 
- digested fooi and gastric juices are turned loose in the ab- 
dominal cavity, where in rupture of the diaphragm the in- 
testines are permitted t» pass into the chest among the 
lungs and heart. Sometimes these ruptures are the result 
of violeat kicks or blows about the abdoinen, and again 
from animal falling when stomach is full of food. 
