106 



HeiiioiThagic Septicemia of Cattle. 



to the deeper layers of the muscles. The tongue appears more 

 or less enlarged, dark, of a dirty brownish-red color, and of a 

 very firm consistency. On incising this organ a large quantity 

 of a light yellow serous fluid escapes, while in parts of the 

 infiltrated tissue, especially under the mucous membrane, flat, 

 diffused, fresh hemorrhages are present. The frenum of the 

 tongue and the surrounding parts as well as the submucous 



Fig. 27. Pneumonia in hemorrhagic septicemia of cattle. Above, brownish-red 

 hepatization with hemorrhages; below, grayish-red hepatization with 

 comraencing necrosis. Inter-lobular connective tissue edem- 

 atously infiltrated, lymph spaces dilated in parts. 



connective tissue of the pharynx and the larynx show gelatinous 

 infiltration and appear as flabby masses. The mucous mem- 

 brane of the upper air passages shows a catarrhal swelling 

 and is sometimes covered with croupous membranes. The 

 retropharyngeal lymph glands and those of the neck show pro- 

 nounced acute swelling. 



