&LASS IV. 2. 1. 4. OF ASSOCIATION. 401 



oiher means have failed, When young infants are afflicted with 

 griping joined with costiveness, I have sometimes directed them 

 to he taken out of a warm bed, and carried about for a few 

 minutes in a cool room, with almost instant relief. 



4. Pallor ex cegritudine. When sickness of stomach first oc- 

 curs, a paleness of the skin attends it; which is owing to the 

 association or catenation between the capillaries of the stomach 

 ancl the cutaneous ones; which a.t first act by direct sympathy. 

 But in a short time there commences an accumulation of the 

 sensorial power of association in the cutaneous capillaries during 

 their state of inactivity % and then the skin begins to glow^ and 

 sweats break out, from the increased actions of the cutaneous 

 glands or capillaries, which are now in reverse sympathy with 

 those of the stomach. So in continued fevers, when the sto- 

 mach is totally torpid, which is known by the total aversion to 

 solid food, the cutaneous capillaries are by reverse sympathy in 

 a perpetual state of increased activity, as appears from the heat 

 of the skin. 



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

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

 association or catenation of the action of the extreme vessels of 

 the lungs with those of the skin. So that when the latter are 

 rendered torpid or inactive by the application of sudden cold, 

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

 circulation of the blood through the lungs; for this difficulty of 

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

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

 shower-bath, and is soon conquered by habitual immersions. 

 The capillaries of the skin are rendered torpid by the subduc 

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

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

 are rendered torpid by the diminution of the sensorial power of 

 association, which is now excited in less quantity by the lessen- 

 ed actions of the capillaries of the skin, 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 stimulus of the blood* But in a short time the 

 sensorial powers of irritation, and of association, become accu- 

 mulated, and very energetic action of both these membranes 

 succeeds. Which thus resemble the cold and hot fit of an in- 

 termittent fever. 



6. Dyspepsia a pedibus frigidis. When the feet are long cold, 

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

 liable to indigestion and consequent heart-burn. The irritative 

 motions of the stomach become torpid, and do their office f?f 



VOL. IT. 3 F 



