ENCEPHALITIS. 127 



life of himself or those about him. Sometimes the animal 

 "vvill lie on his side and keep pawing for hours. At other 

 times he will try to place his fore-leg over his head, or 

 may stand hanging his head until his muzzle comes 

 into contact with the ground. Again, he will raise his head, 

 rear up, and make frantic attempts to climb up the wall or 

 manger. In other cases he will persistently walk in a circle 

 for hours together, and no amount of persuasion or force 

 will induce him to go in any other direction ; in fact, the 

 animal seems totally incapable of walking in a straight line. 

 The frenzy is well marked, and when present he bites and 

 tears at everything within reach. It is very different, how- 

 ever, to the frenzy of rabies. 



Post-mortem appearances vary. In some cases there is 

 no sign present except well-marked congestion of the 

 meninges of the brain, where frenzy has been a prominent 

 symptom, or the brain itself may be congested. 



Pigs fed on refuse from the kitchen, and cows fed on 

 slops, or either of them fed on too rich food, also suffer with 

 encephalitis. Over-ripe grasses will also cause it in cattle. 

 An admixture of carrots in the food tends to prevent the 

 evil effects of too rich food. 



Treatment. — The treatment varies, but, as a rule, an active 

 cathartic is to be given, as the following : aloes b.b. 5i. ; 

 hydrarg. subchlor. 5i. The latter is to hasten the action of 

 the aloes. In some cases, where the patient is a very large 

 animal, aloes 5x. may be given. Apply cold water, pounded 

 ice, etc., in a bag to the head. A good dose of physic is of 

 great benefit, but only in the earliest stages of the malad3\ 

 The same may be said of blood-letting. Belladonna and 

 bromide of potassium are useful, given in the usual sized 

 doses, the latter remedy being the most useful of the two. 

 The animal should be placed in a large j^ard or a padded 

 box, to guard against injury. The prognosis, as a rule, is 



