DISEASES OF HORSES AND CATTLE. 157 



affected muscles twice daily with a little soap lini- 

 ment. 



Pkrenitis (Inflammation of tt<- Brain). — This is 

 at first congestive, subsequently inflammatory. It 

 is known as "Phrensy," and is usually caused by in- 

 juries or a too plethoric state of the system. It is 

 often prevalent in very hot weather. 



Symptoms : The congestive state is stupor, slow 

 pulse, respirations slow and rough. The mem- 

 branes of the nose and eyes are very red, and the 

 animal seems "foolish." Soon fever sets in with a 

 full, fast pulse, fast breathing, a wild, staring con- 

 dition of the eyes. The ox bellows and charges at 

 all available objects. The horse strikes with his 

 fore feet, and in some cases will tear anything 

 within reach with its teeth, and it is dangerous to 

 go near him. As the disease advances there are 

 convulsions, with more or less loss of power, and 

 the animal may fall. "There is a want of method 

 in the fury of a phrenitic ox not discernible in that 

 of a rabid one." Later, paralysis sets in, soon fol- 

 lowed by death. 



Treatment: As soon as possible secure the ani- 

 mal and bleed if necessary from both jugular veins 

 from six to ten quarts; this will relieve the pres- 

 sure on the brain. Apply ice or very cold water 

 to the head and give a strong dose of cathartic 

 medicine, one and one-half pounds Epsom salts for 

 the ox and one ounce aloes and one dram of calomel 

 for the horse. Also give tincture of aconite in 

 doses of twenty to thirty drops every two hours in 

 a little water. When it is difficult to give bulky 



