DISEASES OF THE NERVOUS SYSTEM. 407 



be administered, followed by coarse powdered mix vomica, in 

 one-drachm doses. 



PARAPLEGIA. 



This form of paralysis is frequently seen in the lower animals. 

 It is produced in a variety of ways, as slipping-, falling, and 

 jumping. It may originate in indigestion and constipation. 

 Paralysis arising from indigestion is occasionally seen during an 

 attack of colic. It is sometimes seen in the mare during the 

 period of oestrum. In horned cattle, jjaraplegia is not an unfre- 

 quent symptom of indigestion, arising from impaction of the 

 rumen, and from uterine irritation. If the paralysis is due to 

 fracture of the anterior dorsal vertebra, there will be loss of 

 motion in the anterior as well as the posterior extremities. When 

 the posterior extremities only are paralyzed, the practitioner 

 may know that the injury is situated pretty well back. 



Treatment. — Give eight drachms of aloes. Ergot of rye and 

 belladonna may be used, one drachm of each. The l)romide of 

 potash should be given in the early stages, followed by nux 

 vomica, in drachm doses. Sling may be used if he will support 

 j^art of his weight by his limbs. 



HYDROCEPHALUS. 



This is the term given to water in the cranial cavity. It is 

 sometimes seen in connection with a fetus; in such a case, de- 

 livery cannot be effected unless an opening is made in the head 

 of the fetus and the fluid allowed to escape. 



