EOAEING DYSPNCEA. 627 



direct examination of the air passages, and especially by aus- 

 cultation. 



The treatment of roaring is either palliative or curative. 

 A bad roarer may be rendered useful by being made to wear 



Fig. 148. 



carefully adapted pads over the false nostrils, or by having 

 a tube inserted in the trachea. The latter is an opera- 

 tion chiefly performed in acute cases when suffocation is 

 threatened. 



Various cures for roarers have been from time to time sug- 

 gested. It is evident that nasal tumours, depressions of bone, 

 exudations, &c., must be very differently treated. When 



