SECT. XXXIII. 3. i. OF SENSATION. 



quence of this fympathy. In the fame manner the rofy eruption 

 on the faces of drunkards more probably arifes from the fympathy 

 of the face with the ftomach, rather than between the face and 

 the liver, as is generally fuppofed. 



This fympathy between the ftomach and the Ikin of the face 

 is apparent in the eruption of the fmall-pox ; fmce, where the dif- 

 eafe is in coniiderable quantity, the eruption on the face firft: 

 fucceeds the ficknefs of the ftomach. In the natural difeafe the 

 ftomach feems to be frequently primarily affected, either alone 

 or along with the tonfils, as the matter feems to be only diffufed 

 in the air, and by being mixed with the faliva, or mucus of the 

 tonfils, to be fwallowed into the ftomach. 



After fome days the irritative circles of motions become dif- 

 ordered by this new ftimulus, which acts upon the mucous li- 

 ning of the ftomach , and ficknefs, vertigo, and diurnal fever 

 fucceed. Thefe difordered irritative morions become daily in- 

 creafed for two or three days, and then by their increafed action 

 certain fenfitive motions, or inflammation, is produced, and at 

 the next cold fit of fever, when the ftomach recovers from its 

 torpor, an inflammation of the external (kin is formed in points 

 (which afterwards fuppurate), by fenfitive aTociation, in the 

 fame manner as a cough is produced in confequence of expofing 

 the feet to cold, as defcribed in Seel. XXV. i. i. and Clafs IV. 

 2. 1.7. If the inoculated (kin of the arm, as far as it appears 

 inflamed, was to be cut out, or deftroyed by cauftic, before the 

 fever commenced, as fuppofe on the fourth day after inoculation, 

 would this prevent the difeafe ? as it is fuppofed to prevent the 

 hydrophobia. 



III. i. Where the new veflels, and enlarged old ones, which 

 conftitute inflammation, are not fo haftily diftended as to burft, 

 and form a new kind of gland for the fecretion of matter, as 

 above mentioned ; if fuch circumftances happen as diminifh the 

 painful fenfation, the tendency to growth ceafes, and by and by 

 an abforption commences, not only of the fuperabundant quan- 

 tity of fluids depofited in the inflamed part, but of the folids 

 likewife, and this even of the hardeft kind 



Thus during the growth of the fecond fet of teeth in children, 

 the roots of the firft fet are totally abforbed, till at length noth- 

 ing of them remains but the crown ; though a few weeks before, 

 if they are drawn im maturely, their roots are found complete. 

 Similar to this Mr Hunter has observed, that where a dead 

 piece of bone is to exfoliate, or to feparate from a living one, 

 the dead part does not putrify, but remains perfectly found, 

 while the furface of the living part of the bone, which is in con- 

 tact with the dead part, becomes abforbed, and thus effects its 



feparation. 



