DISEASES OF HORSES AND CATT^r,. 165 



this does not cure it try Fowler's solution of ar- 

 senic in two tablespoonful doses twice daily in the 

 feed, and continue it for one month. 



Tetanus, or Lockjaw. — This is a disease char- 

 acterized by involuntary and painful con- 

 tinued contractions of the muscles, usually 

 caused by an injury or operation. The 

 nature of this disease is not well under- 

 stood, but it must be from some morbid 

 agent finding its way into the animaPs system 

 through the wound, but of what nature we are not 

 sure, as post-mortems reveal no distinct lesion. 

 There are two forms of lockjaw. One called idio- 

 pathic, which arises from some internal cause, or 

 at least we cannot find an external cause. The 

 other is called traumatic tetanus, caused by 

 wounds or injuries. Punctures to the feet by nails 

 is a very common cause, and operations on the tail. 

 It is impossible to say what kind of a horse is most 

 subject to this disease, or what state of the system 

 most favorable to it, as it may happen to any kind 

 of a horse from very slight injury, while another 

 horse may be very badly smashed up and yet 

 escape. 



Symptoms of lockjaw: It may begin in any 

 group of muscles, but usually it is either the mus- 

 cles of the jaws or the muscles of the neck, loins, 

 or hind legs. If it is the jaws there will be a champ- 

 ing of the teeth, with a flow of saliva from the 

 mouth; the animal will try to eat, but cannot, al- 

 though it may be able to drink water. If it is the 

 neck, the animal if moved will bend its body, but 



