124 ON RESPIRATION, 



cousfhs, which niav be divided into the inllani- 

 matory and chronic kinds. In the inflamma- 

 tory cough there is generally some discharge 

 from the lungs, but in the confirmed chronic 

 cough there is seldom any discharge whatever. 

 As the horse does not expectorate through his 

 mouth, the mucus of the lungs is coughed 

 up into the nose, from whence it is afterwards 

 discharged by the action of snorting or sneezing. 

 Hence, if a horse snorts after he coughs, he is 

 generally supposed to be (although the reason is 

 not known) sound in those viscera. In the hu- 

 man subject, asthma is commonly divided into 

 two kinds, the humoral and the spasmodic. 

 Veterinary practice has not hitherto furnished 

 any proofs, that the horse is subject to asthma 

 of the spasmodic kind ; and from what may be 

 collected from the symptoms of broken wind, 

 it is probable that the latter disease in horses is 

 totally different from the asthma in the human 

 being. For the attacks of asthma are usually 

 periodical, whereas the effects of broken wind 



are 



