OF MED Vt. w? 



nitrous folutiun of iilvcr fhcws the lime to be 

 united with fait. Only half a grain of falitcd 

 lime cxills in each pint of water. 



A lew minute particles of common fait, 

 fcarcely viiiblc, appear in the rcflduum, after 

 the boiling, but the whole are fcarce equal to 

 one fourth of a grain. 



A folution of ponderous earth hath not the 

 e fie ft to render water of Medvi turbid ; whence 

 it appears, tliat this water contains no mixture 

 of vitriolic acid. 



Kxtraftive mucilaginous matter precipitated 

 with vinegar of litharge, the folution of filvcr 

 being previoufly fe pa rated with marine acid, is 

 obtained in the proportion of three grains for e- 

 very pint of water. There mud therefore be a 

 grain of pure mucilage for every pint. 



Upon comparing thefe experiments with thofe 

 of llucrnc, it appears, that Hiaernc's univcrfal 

 acid, which he regards as exifting in a fmaller 

 proportion in the Mcdvi than in the Spa water, 

 is the fame principle which we denominate ae- 

 rial acid; that his ferrcous fulphur is hepatic 

 air; and his alum, falitcd lime. 



Although there be in Sweden other acidulous. 

 "Waters endowed with medicinal virtues, yet we 

 know of none, as yet, equal to thofe of Medvi. 

 It may therefore be proper toinilitute a com- 

 parifon between the Mcdvi waters and thofe of 

 Pyrmont and Spa, which have been long, im- 

 ported 



