Microbian Bronchitis in Dogs. 227 



to frothing around the lips, tinged or streaked with blood. The 

 abundant and even bloody muco-purulent nasal discharge often 

 dries, during the night, around the nares and for some distance 

 inward, obstructing the passage of air, and causing breathing 

 through the mouth, often with marked inflation of the cheeks 

 and flapping of the lips. Retching and vomiting are not uncom- 

 mon. Percussion may detect no change though circumscribed 

 areas of flatness may betray the existence of collapse through 

 blocking of a bronchus. Auscultation gives especially mucous 

 rales coarse and fine, wheezing, sibilant or cooing sounds, stri- 

 dant rouchi, and even at times a suggestion of a coarse crepita- 

 tion. The temperature may reach 105° F. but is irregularly 

 variable, the prostration of the dog is great, the eyes lusterless 

 and sunken, the face drawn and anxious, and the animal dull, 

 stupid and even partially comatose, and unable or unwilling to 

 stand on its feet. He usually lies upon his breast with head 

 and fore limbs extended to favor breathing as far as possible. 

 Emaciation goes on rapidly, and in bad cases the dyspnoea goes on 

 increasing to a fatal issue. 



Diagnosis. The preservation of life, spirit and appetite, of a 

 healthy resonance over the chest on percussion, of a normal re- 

 spiratory murmur, in the presence of the mucous r^le in the 

 larger bronchia, and a free muco-purulent discharge bespeaks a 

 tracheo-bronchitis, or at least a bronchitis of the larger bronchia 

 only. The presence in addition of dyspnoea, cyanotic mucosae, 

 areas of flatness on percussion from collapsed lung, fine mucous 

 r^les, sibilant, or cooing sounds, ronchi, painful cough, great 

 prostration and dullness, rapid emaciation, flapping lips and 

 cheeks, and threatening asphyxia bespeaks capillary bronchitis. 



Prognosis. Inflammation confined to the larger bronchia is 

 usually mild and may terminate in recovery in a week or ten 

 days. Capillary bronchitis on the contrary is liable to cut off 

 the patient early by asphyxia, or to be prolonged with great at- 

 tendant debility, auto-poisoning, low fever, and a fatal exten- 

 sion to the lung tissue, and bronchial and mediastinal glands. 

 A fatal issue is very frequent in this form. 



Lesions. In tracheo-bronchitis the lesions often do not extend 

 beyond congestions and arborization of the mucosa, and the ac- 

 cumulation of muco-purulent matter in the upper air passages. 



