SO'l ^ BUHEAU OF ANJMAL INDUSTRY. 



matter, staining it evenly instead of being mixed with it in the form 

 of clots. At the commencement of the complication the animal ma}' 

 be subject to chills, which mav again occur in the course of the disease, 

 in which case, if severe, an unfavorable termination by gangrene ma^r 

 be looked for. If gangrene occurs it is shown by preiiminarj' chills, 

 a rapid elevation of temperature, a tumultuous heart, a flakj' discharge 

 from the nostrils, and a fetid breath; the symptoms are identical with 

 those which occur in gangrene complicating other diseases. 



Complication of the Irain. — At any time during the course of the 

 disease congestion of the brain may occur; at an early period if the 

 fever has been intense from the outset, but in ordinary cases, more fre- 

 quently after three or four days. 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 along until it reaches the corner and again fastens itself. It 

 ma}^ become more violent, and rear and plunge. If disturbed bj^ the 

 entrance of the attendant or an}' loud noise or bright light, it will 

 stamp with its fore feet and strike with its hind feet, but is not detinite 

 in fixing the object which it is resisting, which is a diagnostic point 

 between meningitis and rabies and which renders 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 rope. 

 It wanders almost Invariably in one direction. The pupils may be 

 dilated or contracted, or we may 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 paid to the sur- 

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

 the body. The respiration becomes slower, the pulsations are dimin- 

 ished, the coma lasts for A'ariable 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. 



Comjjlication of tlie feet. — The feet are the organs which are next in 

 frequency predisposed to congestion. This congestion takes place in 

 the lamlnie (podophyllous structures) of the feet. The stupefied animal 

 is roused from its condition by excessive pain in the feet, and assumes 

 the position of a foundered horse; that is, if the fore feet alone are 

 affected they arc carried forward until they rest on the heels, and if 

 the hind feet are affected all of the feet are carried forward resting on 

 their heels, the hind ones as near the center of gravity as possible. 



