DISEASES OF RESPIRATORY PASSAGES AND ORGANS. 





'•■■ . . ■■ • 



TBACHEOTOMT TUBE IJJSEBTED IN THE WINDPIPB. 



The inflammatory condition exists during a limited period, 

 varying from one to five days. Then commences the suppura- 

 tive stage, which is accompanied by a copious discharge, from 

 both nostrils, of a secretion somewhat resembling pus, or matter. 



Causes. — As regards the special cause of this affection very lit- 

 tle is known. It may be supposed, however, to originate in a 

 common cold, or catarrh; yet it is well known that horses are 

 sometimes attacked with it that are not exposed to the ordinary 

 influences which induce a catarrhal affection. Therefore we may 

 infer that such disease will occasionally occur, either spontane- 

 ously or accidentally, as the case may be, in spite of our best 

 efforts to prevent it. As the old saying is, " Nature is ever busy 

 in maintaining the integrity of the vital forces of the animal 

 economy. Any deviation from the prescribed laws which physi- 

 ology imposes is a sure and certain cause of disease." 



I now propose to introduce a case which, at the time of its oc- 

 currence, attracted much attention and curi^iiy, both on account 



