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CEREBROSPINAL MENINGITIS (‘‘ FORAGE POISONING’’). 1 
found to be from 103° to 107° F., but within 24 hours the temperature 
gradually falls until it reaches normal and then becomes subnormal. 
The pulse is from 40 to 90 and weak, while the respirations are fluc- 
tuating from normal to as high as 48 per minute. There may or may 
not be drooling of saliva, depending on the extent of the paralysis 
of the pharynx. The animal is often down on the second or third 
day and may or may not get up when urged to do so. While down 
he will go through automatic-like movements of pacing or walking, 
resulting in acceleration of the pulse and respiration. At this time 
the legs are held out stiffly and parallel to the ground. The hind legs 
of many of these animals that have gone down are paralyzed and there 
is loss of sensation of the skin of these parts. The expired air is 
extremely fetid, and there may be a croupous-like deposit of the 
throat, which has caused the name ‘‘putrid sore throat.’ The con- 
junctiva may show injected blood vessels or petechize on a-yellowish- 
tinted background. Coma or somnolence may be marked in ani- 
mals going down within the first few days. Those which remain 
standing may become violent or delirious, but ordinarily the horse is 
tractable and easily managed. Death usually occurs in from 4 to 8 
days, although in the acute form death may follow within 10 or 12 
hours after the first symptoms are observed, while in chronic 
cases the. disease may last 2 or 3 weeks. The prognosis is very 
unfavorable, as 85 to 90 per cent of the affected animals die, in the 
beginning of the outbreak, but later the cases become milder with a 
consequent drop in the mortality. 
On post-mortem the amount of lesions observable to the naked 
eye is in marked contrast to the severity of the symptoms noted. 
The pharynx and larynx are inflamed-in many cases, and sometimes 
coated with a yellowish white glutinous deposit, extending at times 
over the tongue and occasionally a little way down the trachea. The 
lungs are normal, except from complications following drenching or 
recumbence for a long period. The heart is usually normal in appear- 
ance, except an occasional cluster of petechie on the epicardium, 
while the blood is dark and firmly coagulated. The mucosa of the 
stomach indicates a subacute gastritis, while occasionally an erosion 
is noted. An edematous, gelatinous infiltration is observed in the 
submucosa of such cases. The first few inches of the small intestines 
likewise may show slight inflammation in certain cases, while in others 
it is quite severe; otherwise the digestive tract appears normal, 
excluding the presence of varymg numbers of bots, Stronqylus vul- 
gatus, and a few other nematodes. The liver is congested and 
swollen in some cases, while it appears normal in others. The spleen 
is, as a rule, normal, and at times the kidneys are slightly congested. 
The bladder is often distended with dark-colored urine, and occa- 
sionally a marked cystitis has been observed. The adipose tissue 
