CLASS I. 3. i. 3. OF IRRITATION. 133 



1 opening them again accelerates it ; hence where 



thsdi;>e!'Uon is impaired, and the ftomach fomewhat diftended 



with air, it is hetter to reftrain than to encourage eructations, 



^t the quantity makes it necefiary. When wine is confined 



in bottles, the fermentation ftill proceeds flowly even for years, 



till all the fugar is converted into fpirit ; but in the procefs oi 



i< n, the faccharme part is abforbed in the form of chyle 



by" the bibulous months' of the numerous lafteals, before it has 



time to run into the vinous fermentation. 



3. Apepjia. Indigeition. Water-qualm. A few mouthfuls 

 of the aliment are rejected at a time for fome hours after meals. 

 When the aliment has had time to ferment, and become acid, it 

 produces cardialgia, or heart-burn. This difeafe is perhaps gen- 

 erally left after a flight inflammation of the ftomach, called a fur- 

 feit, ocoiifioned by drinking cold liquors, or eating cold vegeta- 

 bles, when heated with exercife. This inflammation of the 

 ilomach is frequently, I believe, at its commencement removed 

 by a critical eruption on the face, which differs in its appearance 

 as well as in its caufe from the gutta rofea of drunkards, as the 

 ikin round the bale of each eruption is lefs inflamed. See Clafs 

 II. i. 4. 6. This difeafe differs from Cardialgia, Clafs I. 2. 4. 

 5. in its being not uniformly attended with pain of the cardia 

 ventriculi, and from its retrograde motions of apart of the ftom- 

 ach about the upper orifice of it. In the fame manner as hyfte- 

 ria differs from hypochondriaGs ; the one confiding in the weak- 

 nefs and indigeftion of the fame portions of the alimentary canal, 

 and the 'other in the^inverted motions of fome parts of it. This 

 apepfia or water-qilalm continues many years, even to old age ; 

 Mr. G of Litchfield fuffered under this difeafe from his in- 

 fancy ; and, as he grew old, found relief only from repeated dofes 

 of opium. 



M. M. A blifter, rhubarb, a grain of opium twice a day. 

 Soap, iron-powder. Tin-powder. 



4. Vomit us. An inverted order of the motions of the* flom- 

 ach and cefophagus with their abforbent veifels, by which their 

 contents are evacuated. In the act of vomiting lefs fenforial 

 power is employed than in the ufual periftaltic motion of the 

 ftomach, as explained in Seel. XXXY. i. 3. Whence after 

 the operation of an emetic the digeftion becomes ftronger by an 

 accumulation of fenforial power during its decreafed aclion. 

 This decreafed action of the ftomach may be either induced by 

 want of ftimulus, as in the ficknefs which attends hunger ; or it 

 may be induced by temporary want of irritability, as in cold fits 

 <?f fever , or from habitual want of irritabilitv, as the vomiting 



of 



