OF THE OX. Ill 



typhus shows us injuries which differ from 

 those of typhoid fever; for if the breathing is 

 always more or less obstructed at the outbreak 

 of this fever, no serious organic change in the 

 lungs is the consequence thereof. In the ox 

 typhus, on the contrary, when the pulmonary 

 form prevails, the derangements of the re- 

 spiratory organs are remarkable. Thus, the 

 mucous membrane of the nostrils, from which 

 flows a purulent and fetid mucus, is sometimes 

 ulcerated and excoriated. The larynx and the 

 trachea or windpipe, choked up with frothy 

 mucus, show the same alterations, though less 

 frequently. The lungs, which are rather 

 congested than inflamed, are emphysematous, 

 the air having entered and distended the 

 cellular tissue which unites the lobes to- 

 gether. 



In some cases, the lungs are so gorged with 

 air that their lobes constitute but a single 

 heap, rendering them irrecognisable, so greatly 

 do their volume, their specific gravity, and 

 their spongy aeriform aspect differ from the 

 natural state. 



of Circulation. The inner sides 



