POULTRY DISEASES AND THEIR TREATMENT 



which then become inflamed and swollen; 

 a tumor, containing offensive, yellowish, 

 cheesy matter, sometimes develops. The 



FIG. 19. EXAMINING A FOWL WITH A SUSPICIOUS COLD 



course of the disease may extend over sev- 

 eral weeks or months and there may be cases 

 of chronic roup. Some cases end fatally 



