12 DISEASES CLASS I. 2. 4. 13. 



great caution left any of the folution fhould touch the tongue or 

 gums. 



Much cold and much heat are equally injurious to the teeth, 

 which are endued with a fine fenfation of this univerfal fluid. 

 The beft method of preferving them is by the daily ufe of a brufh, 

 which is not very hard, with warm water and fine charcoal dud. 

 A lump of charcoal mould be put a fecond time into the fire till 

 it is red hot, as foon as it becomes cool the external afhes mould 

 be blown off, and it fhould be immediately reduced to fine pow- 

 der in a mortar, and kept clofe (topped in a phial. It takes away 

 the bad fmell from decayed teeth, by warning the mouth with 

 this powder difFufed in water, immediately. The putrid fmell 

 of decaying (lumps of teeth may be deflroyed for a time by warn- 

 ing the mouth with a weak folution of alum in water. If the 

 calcareous cruft upon the teeth adheres very firmly, a fine pow- 

 der of pumice-ftone may be ufed occafionally, or a tooth-inftru- 

 ment. 



Acid of fea-falt, much diluted, may be ufed j but this very 

 rarely, and with the greateft caution, as in cleaning fea-fhells. 

 When the gums are fpongy, they mould be frequently pricked 

 with a lancet. Should black fpots in teeth be cut out ? Does 

 the enamel grow again when it has been perforated or abraded ? 



Qtalgia. Ear-ach fometimes continues many days without ap- 

 parent inflammation, and is then frequently removed by filling 

 the ear with laudanum, or with ether ; or even with warm oil, 

 or warm water. See Clafs II. I. 4. 8. This pain of the ear, 

 like hemicrania, is frequently the confequence of aflbciation with 

 a difeafed tooth , in that cafe the ether mould be applied to the 

 cheek over the fufpecled tooth, or a grain of opium and as much 

 camphor mixed together, and applied to the fufpected tooth. In 

 this cafe the otalgia belongs to the fourth clafs of difeafes. 



14. Pleurodyne chronica. Chronical pain of the fide. Pains 

 of the membranous parts, which are not attended with fever, 

 have acquired the general name of rheumatic ; which fhould, 

 neverthelefs, be reflricted to thofe pains which exifl only when 

 the parts are in motion, and which have been left after inflam- 

 mation of them ; as defcribed in Clafs I. I. 3. 12. The pain of 

 the fide here mentioned affects many ladies, and may poilibly 

 have been owing to the prefTure of tight (lays, which has weak- 

 ened the action of the veflels compofing fome membranous part, 

 us, like the cold head-ach, it is attended with prefent debility ; 

 in one patient, a boy about ten years old, it wa^ attended with 

 daily convulfions, and was fuppofed to have originated from 

 worms. The difeafe^is very frequent, and generally withftands 

 the ufe of bliflers on the part ; but in fome cafes I have known 



it 



