Eoup 317 



will be noticed is a thin, watery discharge from 

 the nostrils, followed by obstructed breathing. A 

 few cases of harsh breathing that had not pre- 

 viously been manifest should be looked upon with 

 suspicion. These cases may be readily detected 

 by passing through the poultry house in the 

 evening when all is quiet. In the later stages of 

 the disease the watery discharge at the nostrils 

 becomes thicker and more sticky, which causes 

 frequent sneezing in order to prevent the air- 

 passages from becoming completely closed. 



Dr. D. E. Salmon says* that the inflammation 

 extends, as the disease advances, from the mem- 

 brane of the nasal cavities to those of other 

 connecting passages. As the orbital space which 

 surrounds the eye connects with the nasal pas- 

 sage, this is frequently involved. The mem- 

 brane of the orbital cavity becomes inflamed and 

 swollen, and in severe cases apparently forces 

 the eye from its socket. The sides of the head 

 become unduly swollen and the fowl frequently 

 becomes entirely blind, the birds presenting a 

 most unsightly appearance. Breathing is per- 

 formed with difficulty, and a thick discharge, at 

 this time, may escape from the nostrils. Death 

 frequently follows after these serious symptoms. 



Treatment. Prevent healthy birds from be- 

 coming contaminated by removing them to clean 



*"The Diseases of Poultry," pp. 32-34. 



