580 Veterinary Medicine. 



then descend suddenly when collapse occurs. In all cases the pro- 

 tozoon is found in the red globules, or free in the blood. In the 

 worst cases the red globules may be so reduced in number that 

 they can scarcely be found. Death comes u.sually by collapse. 

 In some instances the haemoglobinuria may be absent yet the 

 disease advances to a fatal result. 



Lesions. The carcass is usually shrunken and emaciated and 

 exhales a foetid odor. The mucosae, white skin, and all naturally 

 white structures (fat, connective tis.sue, fascia, tendons, liga- 

 ments, brain, spinal cord, etc.), are stained of a deep yellow. 

 The muscles, liver and other darker tissues are of a mahogany 

 yellow ; petechise appear on the heart and sero.sse ; the liver is 

 greatly enlarged and friable (10 lbs.) the spleen is swollen, gorged 

 with blood and a soft, black, bloody pulp ; the stomach and small 

 intestines are empty, yellow and sometimes congested. The large 

 intestines show mucoenteritis throughout with an abundant ru.sty 

 red eKudate. The kidneys are yellowish with cortex .somewhat 

 pale. The bladder also yellow contains dark colored urine. 

 The red blood globules are greatly diminished in number, many 

 are crenated, broken up and distorted and they contain the piro- 

 plasma in large numbers. 



No system of treatment has proved succes.sful. Essays would 

 naturally be made with quinia and other autiperiodics. 



Prevention would naturally be sought in keeping dogs off from 

 the uncultivated land and brush during the tick season (summer, 

 autumn), in clearing and cultivating the tick infested pastures, 

 in drainage, or in smearing the coat of the dog with the oil of tar 

 liniment or other insecticide when he goes hunting. 



PALUDISM IN HORSES. 



Alleged identity with ague. Geographical distribution. Points of difference 

 from ague. Causes : low, damp, undrained, inundated localities, hot sea- 

 sons ; inoculation, congenital. Symptoms : restless, drowsy, stiff, shivering, 

 hyperthermia, tremors, cough, frothy, rusty expectoration, excited breathing 

 and pulse, anorexia ; puffy, petechiated eyelids ; epiphora ; dyspnoea : albu- 

 minous, yellow or red urine with casts : haemoglobinaemia : colics, consti- 

 pation, foetid diarrhoea. Death in a few hours to 6 days, or months. 

 Lesions : reduction in blood globules, creuation, watery blood : petechise : 



