SECT. XXXI i. OF TEMPERAMENTS. 279 



of increafed irritability tending to difeafe, becaufe an increafed 

 quantity of irritative motions generally induces an increafe of 

 pleafureor pain, as intoxication, or inflammation ; and then 

 the new motions are the immediate confequences of increafed 

 fenfation, not of increafed irritation ; which have hence been 

 fo perpetually confounded with each other. 



II. Temperament of Senftbility. 



THER,E is not properly a temperament, or a predifpofition to 

 difeafe, from decreafed fenfibility, fmce irritability and not fenfi- 

 bility is immediately necefiary to bodily health. Hence it is the 

 excefs of fenfation alone, as it is the defect of irritation, that moft 

 frequently produces difeafe. This temperament of increafed fen- 

 fibility is known from the increafed aftivify of all thofe motions 

 of the organs of fenfe and mufcles, which are exerted in confe- 

 quence of pleafure or pain, as in the beginning of drunkennefs, 

 and in inflammatory fever. Hence thofe of this conflitution 

 are liable to inflammatory difeafes, as hepatitis ; and to that 

 kind of confumption which is hereditary, and commences with 

 flight repeated hsemoptoe. They have high-coloured lips, fre- 

 quently dark hair and dark eyes with large pupils, and are in 

 that cafe fubjet to gutta ferena. They are liable to enthufiafm, 

 delirium, and reverie. In this lad circumftance they are liable 

 to (tart at the clapping of a door ; becaufe the more intent any 

 one is on the paffing current of his ideas, the greater furprife he, 

 experiences on their being diflevered by fome external violence, 

 as explained in Se6t. XIX. on reverie. 



As in thefe conftitutions more than the natural quantities of 

 fenfitive motions are produced by the increafed quantity of fen- 

 fation exifting in the habit, it follows, that the irritative motions 

 will be performed in fome degree with lefs energy, owing to the 

 great expenditure of fenforial power on the fenfitive ones. 

 Hence thofe of this temperament do not attend to flight flimu- 

 lations, as explained in Sedt. XIX. But when a ftimulus is fo 

 great as to excite fenfation, it produces greater fenfitive actions 

 of the fyftem than in others : fuch as delirium or inflammmation. 

 Hence they are liable to be abfent in company ; fit or lie long 

 in one pofture ; and in winter have the Ikin of their legs burnt 

 into various colours by the fire. Hence alfo they are fearful of 

 pain ; cover mufic and fleep ; and delight in poetry and romance. 



As the motions in confequence of fenfation are more than nat- 

 ural, it aifo happens from the greater expenditure of fenforial 

 power on them, that the voluntary motions are lefseafily exerted. 



Hence 



