INFLAMMATION OF THE LUNGS. 127 



this, nauseating doses of antimony and digitalis, with nitre, should 

 be given every two hours in severe cases, or even oftener, if the 

 symptoms are urgent. The disease runs its course very rapidly ; 

 and in a few hours so much mischief may be done as to cause 

 death, or irretrievable injury is effected by the permanent 

 thickening of the mucous membrane, in the same manner as in the 

 s roaring ' horse. 



INFLAMMATION OF THE LUNGS. 



PNEUMONIA, PLEURISY, BRONCHITIS, AND PHTHISIS. The three first 

 are almost always active in their character ; and though considered 

 as separate diseases, yet they often coexist in the same subject 

 The lungs are composed of an internal mucous membrane, which 

 is the seat of bronchitis ; of a middle cellular membrane, the seat 

 of pneumonia ; and of an external serous membrane, which is the 

 seat of pleurisy. But pneumonia seldom occurs without some 

 degree of bronchitis ; on the other hand, bronchitis very frequently 

 runs its course, without any mischief to the cellular membrane. 

 It is very difficult to detect the distinguishing marks of these 

 three diseases, without the use of the stethoscope or placing the 

 ear on the chest, which is quite as serviceable. They are all 

 attended with increased frequency and hardness of pulse, with 

 quick breathing, cough, anxiety of countenance, bloodshot eyes, 

 and dislike to lying down. The latter symptoms are only seen in 



