CLASS II. i. 4. 6. OF SENSATION. 223 



in reality white lead or ceruiTa j and if it be bifmuth, it may be 

 equally deleterious. 



Mr. Y had acquired the gutta rofea on hisnofe, and ap- 

 plied a faturnine folution on it for a few nights, and was then 

 feized with paralyfis on one fide of his face -, which however he 

 gradually recovered, and has fmce acquired the gutta rofea on 

 other parts of his face. 



Thefe fatal effects were probably caufed by the difagreeable 

 fenfation of an inflamed liver, which ufed before to be relieved 

 by the fympathetic action and confequent inflammation of the 

 fkin of the face, which was now prevented by the (tronger ftim- 

 ulus of the application of calx of lead. The manner in which 

 difagreeable fenfations induce epilepfy and palfy is treated of in 

 Clafs III. In fome cafes where habitual difcharges, or eruptions, 

 or ulcers, are flopped, a torpor of the fyflem may follow, owing 

 to the want of the accuftomed quantity of fenfation or irritation. 

 See Clafs I. i. 2. 9. and II. i. 5.6. In both thefe fituations 

 fome other ftimulus mould be ufed to fupply the place of 

 that which is taken away , which may either be perpetual, as an 

 iffue ; or periodical, as a cathartic repeated once a fortnight or 

 month. 



Mifs W. an elegant young lady, of about twenty, applied a 

 mercurial lotion to her face, which was covered with very fmall 

 red points (which feemed to have been not acquired by any 

 known or avoidable means) ; (he was feized with inflammation of 

 her lirer, and, after repeated bleeding and cathartics, recovered ; 

 and in a few weeks the eruption appeared as before. 



M. M. Five grains of calomel once a month, with a cathar- 

 tic, five grains of rhubarb and a quarter of a grain of emetic tar- 

 tar every night for many weeks. With this preparation mer- 

 curial plafters, made without turpentine, and applied every 

 night, -and taken off every morning, will fometimes fucceed, and 

 may be ufed with fafety. But bliftering the face all over the 

 eruption, beginning with a part, fucceeds better than any other 

 means, as I have more than once experienced.- Something like 

 this is mentioned in the Letters of Lady Mary Wortley Mon- 

 tague, who bliftered her face with balfam of Mecca. 



Mrs. F. had for many years had a difagreeably looking erup- 

 tion on her chin. After a cathartic with calomel, (he was ad- 

 vifed to blifter her whole chin ; on the healing of the blifter a 

 few eruptions again appeare^, which ceafed on the application 

 of a fecond blifter. She took rhubarb five grains, and emetic 

 tartar a quarter of a grain every night for many weeks. 



Mifs L. a young lady, about eighteen, had tried variety of ad- 

 vice, for pimples over the greateft part of her face, in vain. She 



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