122 DISEASES OF THE HORSE. 



and bad habit of body, terminating by a mysterious and 

 unaccountable discharge from the nose, inasmuch as it is 

 not accompanied with cough, and other symptoms of 

 cold. 



Locked Jaw. — This disease occurs usually after 

 wounds of the feet, as from nails running into the feet, 

 from wounds and fractures, and from a simple wound of 

 a tendinous portion of the body. Locked jaw occurring 

 after wounds or other injuries, is called traumatic. And 

 when locked jaw takes place, as it sometimes does, with- 

 out any injury or assignable cause, it is called idiopatJiic 

 locked jaw. Locked jaw may be defined a spasmodic 

 contraction of the muscles of the body, often confined to 

 one set of muscles alone. I have in practice seen the 

 same contraction in one set of muscles of the body, and 

 the muscles of the jaw free from the cramps and not 

 fixed at all, and depending upon the same causes as often 

 produce fixedness of the jaw. Locked jaw is sometimes 

 confined to the muscles of the neck, and is then called 

 trismus. 



Symptoms. — The symptoms" accompanying locked jaw 

 in the horse are so well known to every body, that little 

 need be said by me about them further than that there is 

 general stiffness and fixedness in the manner of standing, 

 and a peculiar expression of countenance : the^extended 

 and dilated nostril, and the fixed ear, tell the tale so 

 plainly, that the muscles of the head and neck are be- 

 yond the control of the animal, else his jaw or mouth 

 would not be kept closed. 



Treatment. — Remove the painfully-stricken animal 

 into a place by himself, where he will have plenty of air, 

 and no sound or sight to disturb him, and where no curi- 

 ous idler can enter. Place a bucket of cold, thin gruel 



