IXFECTIOUS DISEASES. 517 



1»1o(m1 is thoioiiofhly inixctl w ith tha matter, staining it evenly, instead 

 of lKMn<r mixed with it in tlu' lOi in of dots. At the coimnenceinoiit of 

 the eoiuplicatioii the animal may he sul)ject to rhills, which may 

 a^rain occur in the course of the disease, in which case, if severe, ap 

 unfavorahle teiinination by <j:an<rrene may he h)oked for. If jran- 

 *ri"ene occui-s it is shown hy preliminary chills, a rapid elevation of 

 temperature, a tumnltuo\is heart, a flaky discharpfe from the nostrils, 

 and a fetid hreath: the sym]»t()ms are identical with tlu^se which 

 occur in fjaiifjrene complicatinjjj other diseases. 



I'om.plirafhn of the hraln. — At any time dnrino: the course of the 

 disease conjrestion of the biain may occur; at an early period if the 

 fever has heen intense from the outset, l)ut in ordinary cases more 

 fre(|uently :ifier three or four days. The animal, which has heen 

 stupid and immoKile. hecomes suddenly restless, walks foi-ward 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, rubbinuf it alonp: until it i-eaches the coi'nei* and ajxain 

 fastens itself. It may become more violent and rear and jilunj^e. If 

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

 brifrht lifrht, it will stamp with its fore feet and strike with its hind 

 feet, but is not definite in lixin*; the object which it is resisting;, 

 which is a diagnostic point between meningitis and rabies and which 

 renders the animal with the foi'mer disease less dangerous to handle. 

 If fastened by a rope to a stake or })Ost, the animal will wandei' in a 

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

 dii'ection. The puj^ils may be dilated or conti-acted. or we may lind 

 one condition in one eye and the oi>posite in the other. 



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

 which the animal is immobile, the head hanging and ]ilace<l ngainst 

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

 the animal, unsteady. Little or no attention is paid to the sur- 

 i-ounding noises, the crack of a whij^. 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 i)y 

 excesses of violence, after which the two alternate, but if sev<'re the 

 period of coma becomes longer and longer until tiie animal dies of 

 spasms of the lungs or of heart failuie. It may die from injuries 

 which occur in the ungovernable attacks of violence. 



Compltciit'ioiY of tlw feet. — The feet are the organs wjiich are next 

 in frequency predisposed to congestion. This congestion takes place 

 in the lamina> (podophyllou-; sti-uctures) of the feet. The stupefied 

 animal is roused from its condition by excessive pain in the feet an<l 

 assumes the position of a foundered horse: that is. if the fore feet 

 alone are affected, thev are carried forward until thev rest on the 



