497 



and moist, Trlien we have a discharge from the nostrils which is muco- 

 purulent, purulent, or hemorrhagic. As in simple pneumonia, in the 

 outset this discharge may be "rusty," due to capillary hemorrhages. 

 We find that the blood is thoroughly mixed with the matter, staining 

 it evenly instead of being mixed with it in the form of clots. At the 

 commencement of the complication the animal may be subject to 

 chills, which may again occur in the course of the disease, in which 

 case, if severe, an unfavorable termination by gangrene may be looked 

 for. If gangrene occurs, ushered in by severe chills, a rapid eleva- 

 tion of temj)erature, a tumultuous heart, a flaky discharge from the 

 nostrils, and a fetid breath, the symptoms are identical with those 

 which occur in gangrene complicating other diseases. 



Complication of tJie brain. — At any time during the course of the 

 disease, at an early period if the fever has been intense from the out- 

 set, but more frequently after three or four days in ordinary cases, 

 a congestion of the brain may occur. The animal, which has been 

 stupid and immobile, becomes suddenly restless, walks forward in 

 the stall until it fastens its head in the corner. If in a box stall and 

 it becomes displaced from its position, it follows the wall with the 

 nose and eyes, rubbing against it until it reaches the corner and again 

 fastens itself. It may become more violent and rear and plunge. 

 If disturbed by the entrance of the attendant or any loud noise or 

 bright light, it will stamp with its fore feet and strike with its hind 

 feet, but is not definite in fixing the object which it is resisting, which 

 is a diagnostic point between meningitis and rabies, and which ren- 

 ders the animal with the former disease less dangerous to handle. 

 If fastened by a rope to a stake or post the animal will wander in a 

 circle at the end of the roi3e. It wanders almost invariably in one 

 direction, either from the right to left or from left to right, in different 

 cases, which is dei)endent upon a greater congestion of one side of 

 the brain than the other. The pupils may be dilated or contracted, 

 or we nvdY find one condition in one eye and the opposite in the other. 



The period of excitement is followed by one of profound coma, in 

 which the animal is immobile, the head hanging and placed against 

 the corner of the stall, the body limp, and the motion, if demanded 

 of the animal, unsteady. Little or no attention will be jiaid to the 

 surrounding noises, the crack of a whip, or even a blow on the surface 

 of the body. The respiration becomes slower, the pulsations are 

 diminished, the coma lasts for variable time, to be followed by excesses 

 of violence, after which the two alternate, but if severe the period of 

 coma becomes longer and longer until the animal dies of spasms of the 

 lungs or of heart failure. It may die from injuries which occur in 

 the ungovernable attacks of violence. 



Complication of the feet. — The feet are the organs which are next in 

 frequency predisposed to congestion. This congestion takes place 

 in the laminse (podojihyllous structures) of the feet. The stupefied 



