142 CANINE DISTEMPER 
Bronchial Lymphatic Glands.—The bronchial lymphatic 
glands are not much increased in size, if at all, but 
frequently the cut surface is black or dark red; some- 
times they contain pus and may be enlarged. 
Trachea and Bronchi.—The trachea and bronchi do 
not commonly show any striking lesions, except, in a 
few instances, petechiz; they do, however, frequently 
contain a frothy mucus, or a muco-purulent or blood- 
stained material, or both. The same may be said of 
the small bronchi, which, in addition, show a large 
amount of swelling and congestion of the mucous 
membrane. Ecchymoses or hemorrhagic ulcers may 
also be present, and in the acutest cases all these 
conditions may be observed throughout the respiratory 
tract. 
Larynx.—The larynx is usually found to be slightly 
inflamed, and may even be suppurating. 
Nasal Mucous Membrane.—Petechial spots or ulcers 
are seen, in a minority of cases, on the nasal mucous 
membrane; at other times it is merely injected and 
purple in colour, or it may be pale and anemic in ap- 
pearance. Usually it is coated with an exudate of vary- 
ing consistence, and where hemorrhages or ulcers are 
present it will be sanious. This exudate is commonly 
yellow, and has a peculiar sticky property, which causes 
it to glue up the nostrils and cake around them in dry, 
hard crusts, which in turn frequently set up irritation 
or ulceration and impede respiration. Inflammation is 
very prone to attack the membranous lining of the nasal 
bones, and particularly the nasal portion of the ethmoid 
bone. 
Alimentary Lesions—//eum and Rectum.—In the diges- 
tive system we find the most common seats of patho- 
logical change to be the ileum and rectum, the caecum 
and remainder of the bowel sometimes being also 
