FEVERS. 651 



o. The impressions made upon our senses, particularly, 

 *. Increased heat, whether arising from 

 <**. External heat, or 

 ftft. The accumulation of the heat of the body. 



b. The exercise of the body. 



c. The exercise of the mind. 



d. The taking in of aliment. 



e. Particular irritations arising from 

 *. The sense of thirst, 



ft. Crudities, or corrupted humours, in the stomach, 

 y. The preternatural retention of faeces, 

 $. A general acrimony of the fluids. 



B. Employing certain sedative powers ; as, 



a. Cold, 



b. Refrigerants ; the chief of which are, 

 . Acids of all kinds, 



ft. Neutral salts, 

 y. Metallic salts. 



C. Diminishing the tension and tone of the arterial sys- 



tem; by 



a. Blood-letting, 



b. Purging. 



2. Taking off the spasm of the extreme vessels, by 



A. Internal means ; which are, 



a. Those remedies which determine to the surface, as, 

 . Diluents, 



ft. Neutral salts, 

 y. Sudorifics, 

 3. Emetics. 



b. Those remedies, named Antispasmodics. 



B. External means ; as, 



a. Blistering, 



b. Warm bathing. 



II. To remove the causes 9 or obviate the effects of debility, 



by, 



1. Supporting and increasing the action of the heart and ar- 

 teries, by 

 A. Tonics, as, 

 a. Cold, 



2z 2 



