DISEASES OF THE NERVOUS SYSTEM 59 



ened. Bloody or straw colored liquid may collect 

 in the cavities of the brain and between its mem- 

 branes. Infection of this fluid with pvis germs is a 

 condition sometimes met with. 



Treatment. — Preventive treatment consists in 

 avoiding, as far as possible, such ,coiiditions as may 

 cause the disease. 



The success of the treatment depends largely 

 on being prompt in , the use of such curative 

 measures as are available. It is very necessary that 

 the hog be given a quiet, cool place, where it can- 

 not be disturbed by other animals. Bleeding will 

 greatly relieve the congestion or inflammation, if 

 practiced in the ' early part of the attack. Cold ap- 

 plications to the head are of some value in re- 

 lieving the blood pressure in the part. It is ad- 

 visable to give a large dose of Epsom salts and 

 ■ follow this up with small doses of castor-oil daily. 

 When the animal becomes paralyzed, iodide of 

 potassiurt) (twenty grains) and tincture of nux 

 vomica (fifteen drops) should be given in a small 

 amount of water three times a day. 



BLIND STAGGERS— VERTIGO 



Blind staggers is usually associated with diseases 

 of the brain, such as anemia, congestion, tumors, and 

 parasites (cysticerci), especially the latter. It may 

 occur as a symptom of chronic indigestion, as a re- 

 sult of reflex irritation to the brain. 



Symptoms. — These are attacks of blindness, jerk- 

 ing upward of the head, turning in a circle, or ro- 



