SECTION J 
OF THE HORSE, ITS DISEASES AND STRUCTURE 
CHAPTER I. 
DISEASES OF THE HEAD, INCLUDING THE BRAIN, EARS, 
MOUTH, NOSTRILS, EYES, &C. 
The diseases of the head in animals, as well as in the human 
being, are, for the most part, so complicated and obscure 
that few non-professional men are qualified to undertake 
their cure with success; but it will be our endeavour to 
treat the subject in as plain language as possible, so that 
those who have not regularly studied the veterinary art may 
at least acquire such a knowledge as will enable them to 
apply some judicious remedy, until the advice of a practi¬ 
tioner can be obtained. 
MEGRIMS. 
This malady is occasioned by a pressure on the brain, 
caused by an unusual flow of blood to it. The flow of 
blood through the brain is ten times greater in quantity 
than through any other portion of the body of equal bulk. 
To prevent as far as possible any unusual flow of blood to 
this organ, the arteries pursue an extremely winding and 
circuitous course, and enter the skull through small holes 
in the bony process. These holes are so small that they will 
