170 Diseases of the Respiratory Organs. 
moderates as the pustules cease to form and indicates a 
tendency to decline. This is the usual or benign 
condition. Other forms exhibit a tendency to induce 
bronchitis, pneumonia or broncho-pneumonia, in which 
extensive pustular discharges flow from the nostrils, with 
cough, mucous réle, &c., and in fatal cases stertorous 
breathing. In the Jntestinal form profuse bilious and 
often offensive evacuations take place. All the forms are 
attended with extremely fcetid breath and excretions, the 
skin also emitting the same unpleasant odour. Young 
dogs are especially liable to contract the disease in which 
mortality is always the greatest, the various stages being 
developed and merging into each other with remarkable 
rapidity. 
Treatment of the patient comprises diligent and careful 
nursing, with mild febrifuges, stimulants and tonics. In 
warm or mild weather the eruption proceeds most favour- 
ably, particularly if the animal is sheltered from draughts, 
but cold winds and exposure generally checks the process 
of pus-formation, and leads to fatal terminations by 
implication of important internal organs. Animals re- 
covering from variola are stated to be free from future 
attacks of the disease. 
CHAPTER XI. 
DISEASES OF THE RESPIRATORY SYSTEM. 
Catarrh or Coryza—Ozaena—Parasitic Ozena—Epistaxis—Polypus—-Laryn- 
gitis—Aphonia—Snoring—Bronchitis—Pneumonia—Pleurisy—Parasitic or 
Verminous Bronchitis—Chronic Cough—Asthma. 
Catarrh or Coryza.—Common cold in the head is 
the colloquial term for this affection. It consists of 
congestion of the lining mucous membrane of the nasal 
cavities, which, after some sensation of s¢ufiness or slight 
