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ings of various parts of the body, as a sequel to debilitating 

 diseases. These swellings contain serum thrown out from the 

 blood. The treatment of this affection will be the removal of the 

 exciting cause. (See Dropsy.) 



CEstromania. — This name is, b}^ some, called oestening, which 

 name is applied to mares and cows when desiring the male. 



Omentum. — A fold of the peritoneum, which hangs down from 

 the stomach, and is reflected on itself upwards and backwards to 

 the colon. It is in this where the great deposition of fat takes 

 place. The omentum is often implicated in rupture. 



Open Joints. — (See Broken Knees.) 



Ophthalmia. — (See Eye Diseases.) 



Ossification. — The formation of bone ; but in the language of 

 medical men, it means a deposition of earthy matter in the soft 

 textures of the bodv where bone does not exist. Thus, for in- 

 stance, we speak of ossification of the lateral cartilages of the foot, 

 which form ring-bone. We have ossification of the heart, arteries^ 

 and other parts of the body. 



Osteology. — A name used in speaking of the bony system. 



Osteoporosis. — This is a name given to big head. It is incur^ 

 able. 



Ostitis.— (See Splint.) 



Overreach. — This is the consequence of driving faster than the 

 horse should go. The injury is generally done by the edge of the 

 inner rim of the shoe. Avoid the cause, and treat the wound with 

 the simple ointment. (See Prescriptions and Medicines.) 



Ozena. — (See Gleet.) 



Palliatives. — Medicines given not to cure disease, but to re- 

 lieve the pain. 



Paralysis or Palsy. — Loss of the power of moving in some 

 parts of the body. Paralysis may be confined to one leg or two 

 legs ; then it is called partial. When the horse has lost the power 

 of standing, and the four legs are affected, then it is complete. 

 Usually, however, in the liorse it is confined to the hind parts, or 

 the haunches and legs. Sometimes the paralyzed part is numb, 

 at others the sense of feeling remains. 



Causes. Disease in the brain and spinal cord. 



Treatment. If the patient is young, exercise patience and time, 



