64 DISEASES GLASS L 2. 2. 



tremities, without fever, with dry pale (kin, is a fymptom of 

 general debility, owing to the decreased aftion of the arterial 

 lyilem, and of the capillary veiiels ; whence the perfpirable 

 matter is fecreted in lefe quantity, 2nd in confequerice the fkin is 

 lefs warm. This coldnefsis obfervable at the extremities oi 

 limbs, ears, and nofe, more than in any other parts : as a larger 

 furface is here expofed to the contact of the air, or clothes, and 

 thence the heat is more haftily carried away. 



The pain, which accompanies the coldnefs of the fkin, is 

 owing to the deficient exertion of the fubcutaneous veffels, and 

 probably to the accumulation of fenforial power in the extremi- 

 ties of their nerves. See Sutl. XII. 5. 3. XIV. 6. XXXII. 3. 

 and Clafs I. 2. 4. I. 



M. M. A blifter. Incitantia, nutrientia, forbentia. Exey- 

 cife. Clothes. Fire. Joy. Anger. 



2. Pallor fugitiv us. The fugitive palenefs, which accompa- 

 nies the coldnefs of the extremities', is owing to a lefs quantity 

 of blood pafling through the capillaries of the (kin in a given 

 time ; where the abforbent power of the veins is at the fame 

 time much diminished, a part of the blood lingers at their June-; 

 tion with the capillary arteries, and a bluifh tinge is mixed with 

 true palenefs ; as is feen in the loofe fkin under the eye-lids, and 

 is always a mark of temporary debility. See Clafs II. i. 4. 4. 

 Where the palenefs of the ikin is owing 'to the deficiency of red 

 globules in the blood, it is joined with a yellowim tinge -, which 

 is the colour of the ferum, with which the blood then abounds, 

 as in chlorofis, and in torpor or paralyfis of the liver, and is of- 

 ten miftaken for a fuperabundance of bile. 



A permanent palenefs of the Ikin is owing to the coalefcence 

 of the minute arteries, as in old age. See Clafs I. 2. 2. 9. 

 There is another fource of palenefs from the increafed abforption 

 of the terminations of the veins, as when vinegar is applied to the 

 lips. See Seel:. XXVII. i. and another from the retrograde 

 motions of the capillaries and fine extremities of the arteries. 

 See Clafs II. 3. i. i. 



M. M. A blifter, nutrientia, incitantia, cxercife, oxygene gas. 



3. Pus par cms. Diminimed pus. Drynefs of ulcers. In 

 the cold fits of fever all the fecretions are diminiihed, whether 

 natural or artificial s as their quantity depends on the actions of 

 the glands or capillaries, which then (hare in the univerfal inac- 

 tion of the fyftem. Hence the drynefs of iflues and blilters in 

 great debility, and before the approach of death, is owing to de- 

 ficient fecretion, and not to increafed abforptiou. 



M. M. Opium, wine in very fmall quantities, Peruvian bark. 

 4- Mucus parcior. Dinimilhed mucus. Drynefs of the 



mouth 



