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resemblance, are nevertheless quite distinct, are very similar. In almost alf 
instances they break out after or during some weakening disease, more 
especially influenza and strangles, and are in almost all cases traceable to. 
bad drainage or insufficient ventilation, or to both these causes. Our 
readers will no doubt easily understand that when animals suffering from 
influenza or other debilitating diseases, such as strangles, are closely 
confined in ill-ventilated and badly-drained stables, and are made to inhale 
the products of their own excreta, and to breathe over and over again the 
air contaminated by the exhalations of their bodies, they become still more 
weakened, and fall a ready prey to these eruptive fevers. Purpura and 
scarlet fever very rarely occur as primary diseases, but, as we have said, 
nearly always follow some other debilitating disease, and in most instances. 
their causation depends upon bad hygienic conditions. 
Horses sent to work too quickly after attacks of influenza and strangles. 
not unfrequently develop purpura or scarlet fever in consequence of the 
strain put upon them in their enfeebled condition. Again, in some 
instances, purpura or scarlet fever breaks out in previously healthy horses, 
merely as the result of bad hygienic conditions, and the non-observance of 
the ordinary rules of health. We have had many severe cases of purpura 
in cart horses ; but in most instances the disease followed igdupnns which 
had been greatly neglected and carelessly managed. 
Sometimes, we must remember, influenza is of a very severe type, and 
so weakens the animal and poisons the blood, that, even where the 
hygienic conditions are pretty good, nevertheless scarlet fever develops. 
In some cases it manifests itself after an attack of influenza in horses whose 
constitutions are bad. 
‘We will now speak of the symptoms, first of purpura, then of scarlet 
fever. Usually, in purpura, the first noticeable symptom is the sudden 
appearance of local swellings in different parts of the body—in the limbs, 
belly, head, but more especially around the nostrils, mouth, and lower parts. 
of the face. Ina severe case.under our treatment, the disease began with 
huge swellings of all four limbs, which were so hot and painful that the 
animal, a valuable six-year-old cart horse, could not stand for more than a 
few minutes ata time. Large bluish-black spots of the size of half-a-crown 
appeared about the end of the nose, and the membrane lining the inside of 
the nostrils was of a bluish-black hue. Sometimes we may see little purplish . ~ 
patches in this situation, but they gradually coalesce together, and become 
more darkly coloured. There was a great flow of saliva from the mouth, 
and a blood-stained serous fluid oozed from the nostrils. These swellings in 
purpura terminate abruptly, that is to say, they do not shade insensibly away.. 
They are tense, hot, and painful, and are due to the exuding of blood and 
serous fluid into the tissues. Little blebs of about the size of peas appear 
in most cases on the lower parts of the limbs, around the hocks and fetlock 
joints, and after a time they burst and discharge an amber-coloured serous: 
fluid. The pulse in the case mentioned was very feeble, and varied in 
number from 100—130 beats per minute, and the temperature remained for 
° 
