DISEASES CLASS I. 2. 2. 2, 



tremities, without fever, with dry pale skin, is a symptom of 

 general debility, owing to the decreased action of the arterial sys- 

 tem, and of the capillary vessels; whence the perspirable matter 

 is secreted in less quantity, and in consequence the skin is less 

 warm. This coldness is observable at the extremities of the limbs, 

 ears, and nose, more than in any other parts: as a larger surface 

 is here exposed to the contact of the air, or clothes, and thence 

 the heat is more hastily carried away. 



The pain, which accompanies the coldness of the skin, is 

 owing to the deficient exertion of the subcutaneous vessels, and 

 probably to the accumulation of sensorial power in the extremi- 

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

 and Class 1.2.4.1. 



M. M. A blister. Incitantia, nutrientia, sorbentia. Exercise. 

 Clothes. Fire. Joy. Anger. 



2. Pallor fugitivus. The fugitive paleness, which accom- 

 panies the coldness of the extremities, is owing to a less quantity 

 of blood passing through the capillaries of the skin in a given 

 time; where the absorbent power of the veins is at the same 

 time much diminished, a part of the blood lingers at their junction 

 with the capillary arteries, and a bluish tinge is mixed with the 

 paleness; as is seen in the loose skin under the eye-lids, and is 

 always a mark of temporary debility. See Class II. 1. 4. 4. 

 Where the paleness of the skin is owing to the deficiency of red 

 globules in the blood, it is joined with a yellowish tinge; which 

 is the colour of the serum, with which the blood then abounds, as 

 in chlorosis, and in torpor or paralysis of the liver, and is often 

 mistaken for a superabundance of bile. 



A permanent paleness of the skin is owing to the coalescence 

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

 There is another source of paleness from the increased absorption 

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

 lips. See Sect. XXVII. 1. and another from the retrograde mo- 

 tions of the capillaries and fine extremities of the arteries. See 

 Class II. 3. LI. 



M. M. A blister, nutrientia, incitantia, exercise, oxygene gas. 



3. Pusparcius. Diminished pus. Dryness of ulcers. In the 

 cold fits of fever all the secretions are diminished, whether natural 

 or artificial, as their quantity depends on the actions of the glands 

 or capillaries, which then share in the universal inaction of the 

 system. Hence the dryness of issues and blisters in great de- 

 bility, and before the approach of death, is owing to deficient secre- 

 tion, and not to increased absorption. 



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



4. Mucus parcior. Diminished mucus. Dryness of the 



