CHAPTER VII. 
THE STOMACH, LIVER, ETC.—THEIR ACCIDENTS AND THEIR DISEASES. 
SPASM OF THE DIAPHRAGM. 
Tuts is generally provoked by the heedlessness of the rider. A horse 
is “overmarked,” as the condition is technically called, when the animal 
is urged onward to the point of falling. The person who may occupy 
the saddle then becomes conscious of a strange and loud noise coming 
from the body which he strides; it appears to the equestrian as though 
ie asgenenifee: 
Th te Pi 
THE YOUNG GENTLEMAN AND THE OLD HORSE. 
some demon were located within the carcass, and were violently striking 
the sides. Should the indication be observed, the noise will be found to 
proceed from behind or immediately under, rather than from any part 
anterior to the rider. 
The noise is produced by spasm of the diaphragm. The horse must, 
as the word “ overmarked” seems to imply, have been pushed far beyond 
the point where man should have pulled the rein, A little distance 
farther, after the symptom is devoloped, will bring the animal to the 
ground ; let the check, therefore, be immediately given; the rider should 
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