Broncho- Pneumonia from Inhalation. 309 



Course. With inhalation of a large amount of alimentary 

 matters or medicines, death may follow rapidly from blocking of 

 the bronchia, which in the compact lung of the dog, break up 

 quickly into the bronchioles. In other cases with less material 

 inhaled or that which is less irritating or infecting, the progress 

 may be slow, advancing for several weeks before ending in death 

 or recovery. In fatal cases the cough becomes weaker and ineffec- 

 tive ; the respiration increasingly difficult, painful and exhaust- 

 ing, more and more rapid for a time but in the later stages tardy 

 and even shallow — the respiratory centers having evidently be- 

 come exhausted ; the pulse becomes small and weak, almost im- 

 perceptible, though the heart may still beat tumultuously ; the 

 dog lies constantly on his sternum or side, careless of those about 

 him, in a complete apathy or stupor and with the eyes deeply 

 sunken. Finally death comes from the eighth to the fifteenth 

 day as the result of asphyxia in a thoroughly poisoned system. 



In favorable cases all the symptoms become gradually improved, 

 the eye is brighter and fuller, the respiration easier and deeper, 

 the pulse stronger and more, regular, the cough less painful and 

 more effective. Breathing is reestablished through the nose, and 

 appetite returns. Relapses are, however, to be apprehended in 

 connection with the rupture of abscesses, extensions from tem- 

 porarily inactive centers, and even renewed inhalations. 



Diagnosis will depend largely on the evidence of inhalation, 

 on the progress of the disease from a capillary bronchitis to a 

 pneumonia or even a pleurisy, on the rapid progress of the affec- 

 tion in its later stages, on the indications of the formation of ab- 

 scess cavities, and on the f oetor and grumous character of the dis- 

 charges. 



Treatment. This is largely the same as for capillary bronchi- 

 tis. More attention should, however, be paid to antiseptics. 

 Careful attempts to wash out and purify the bronchia by the in- 

 jection of hydrogen peroxide and the impregnation of the air with 

 non-poisonous volatile antiseptics (carbolic acid, oil of turpentine, 

 creolin, lysol, etc.) are especially indicated. Combined with 

 warm water vapor, these are at once soothing, expectorant and 

 antiseptic, and will often materially assist in clearing the invaded 

 bronchia. As stimulant expectorants may be tried, carbonate of 

 ammonia, alchohol or ammonium chloride vaporized by heat, or 



