534 



ILLvJSTRATED STOCK DOCTOR. 



times supposed, but known to all diseases where there is obstruction n 



•wallowins^. 



IX. Chronio Cough. 



A UORSB QCIDDING. 



There are many cases of long standing or 

 chronic cough. Cough is an attendant upon 

 so many disorders of the air passages, from 

 the most trivial difficulty in teething to glan- 

 ders, that a cough should not be overlooked 

 in the diagnose of diseases. And so many 

 diseases leave the patient with chronic cough, 

 that its symptomatic stages should be care- 

 fully observed. 



Coughing tends generally to a thickening of the membranes. When 

 the membrane covering the larynx becomes thickened, and consequently 

 morbidly sensitive, the cough becomes fixed or what is termed chronic. 

 The sense of smell in the nose is peculiarly acute, and the membranes 

 of the nose and throat, as a matter of course, are fully as sensitive. We 

 have said, "the limbs and feet are half the horse ; the lungs the test of 

 his endurance." Yet nine in ten of the stables in which horses are kept 

 are offensive to man and irritate the air passages when first entered. Yet 

 the sense of smell in man is not very acute, except in a few directions. 

 A stable therefore, offensive to man is not a fit place for horses to bo 

 kept, where the lungs constitute one of the principal excellencies of the 

 animal. 



THK ACT OF COUGHING. 



The cough which accompanies the several diseases of which this rol- 

 nme treats, will be described in the treatment of the diseases themselves. 

 In this article chronic cough will be treated, the cough that is always 

 Present in eating, drinking and inhaling a cold draught of air, or from 



