DISEASES OF THE RESPIRATORY ORGANS. 23 



as it is safe to do without suffocating the patients; 

 this should be repeated daily as long as necessary. 



FOOD LODGED IN THE TRACHEA OR WINDPIPE. 



Particles of food may accidentally be drawn into the 

 windpipe (trachea) and will usually pass down until they 

 reach the place where the trachea divides to pass 

 into each lung; the voice or crowing organs are located 

 at this point, hence a very characteristic syn^.ptom is a 

 shrill or crowing noise. Other symptoms are such as 

 difficult breathing and the comb turning blue suddenly. 



Treatment is hopeless unless the foreign body is 

 lodged well up in the windpipe, when it may be worked 

 up by pressing and rubbing upwards with the thumb 

 and finger; or if this fails, a small opening may be cut 

 into the trachea directly on the obstruction, which 

 should again be closed nicely with a few very fine silk 

 stitches, and the wound kept covered with boracic acid 

 or soda until healed. 



air sack mites or pneumomycoses. 



This is a mite or parasite, ''Cytodites nudus", found 

 in the air sacks about the lungs and sometimes inside 

 of the bones, as in fowls there is communication be- 

 tween the air sacks and bones. 



These mites may be likened unto Mange parasites 

 and if they are found, upon examination, they will 

 appear to the naked eye in the form of small white or 

 yellow nodules. 



Causes: The parasites are supposed to form in a 

 mould growing on dead organic matter and are either 



