Class IV. 2. 1.4. OF ASSOCIATION. 40! 



other means have failed. When young infants are afflicted 

 with griping joined wkh coftivenefs, I have fometimes directed 

 them to be taken out of a warm bed, and carried about ior a 

 few minutes in a cool room, with almoft inftant relief. 



4. Pallor ex agritudine. When ficknefs of ftomach fir ft oc- 

 curs, a palenefs of the (kin attends it •, which is owing to the 

 arTociation or catenation between the capillaries of the ftomach 

 and the cutaneous ones ; which at firft act by direct fympathy. 

 But in a (hort time there commences an accumulation of the 

 fenforial power of arTociation in the cutaneous capillaries during 

 their ftate of inactivity, and then the (kin begins to glow, and 

 fweats break out, from the increafed actions of the cutaneous 

 glands or capillaries, which is now in reverfe fympathy with 

 thofe of the ftomach. So in continued fevers, when the ftom- 

 ach is totally torpid, which is known by the total averfion to 

 folid food, the cutaneous capillaries are by reverie fympathy in 

 a perpetual ftate of increafed activity, as appears from the heat 

 of the (kin. 



5. Dtfpnoea a balneo frigido. The difficulty of breathing on 

 going up to the middle in cold water is owing to the irritative 

 affociation or catenation of the action of the extreme vefTels of 

 the lungs with thofe of the {kin. So that when the latter are 

 rendered torpid or inactive by the application of fudden cold, 

 the former become inactive at the fame time, and retard the 

 circulation of the blood through the lungs, forthis difficulty of 

 breathing cannot be owing to the prefTure of the water imped- 

 ing the circulation downwards, as it happens equally by a cold 

 fhower-bath, and is foon conquered by habitual immerfionSc 

 The capillaries of the fkin are rendered torpid by the fubduc- 

 tion of the ftimulus of heat, and by the consequent diminutions 

 of the fenforial power of irritation. The capillaries of the lungs 

 are rendered torpid by the diminution of the fenforial power of 

 arTociation, which is now excited in lefs quantity by the leffen-* 

 ed actions of the capillaries of the fkin, with which they are 

 catenated. So that at this time both the cutaneous and pulmo- 

 nary capillaries are principally actuated, as far as they have any 

 action, by the ftimulus of the blood. But in a ihort time the 

 fenforial powers of irritation, and of arTociation, become accu- 

 mulated, and very energetic action of both thefe membranes 

 fucceeds. Which thus refemble the cold and hot fit of an in- 

 termittent fever. 



6. Dyjpepfta a pedlbus frigfdij. When the feet are long cold, 

 as in riding in cold and wet weather, fome people are very 

 liable to indigeftion and confequent heart-burn. The irritative 

 motions of the ftomach become torpid^ and do their office of di- 



Vot.. II. D d d geilion 



