InjlammMes. 223 



wine take up i of fulphur ; it is foluble in 

 hot oils, and alfo in fixed alkalis both in the 

 dry and liquid way ; it is decompofed by 

 boiling in concentrated nitrous acid, partly 

 decompofed and partly diflblved by the vitrio- 

 lic, and dephlogifticated marine acid ; it con- 

 fifts of vitriolic acid and phlogifton united 

 nearly in the proportion of 3 to 2 5 for 100 

 gr. of fulphur contain about 60 of acid, and 

 40 of phlogifton. 



It is found native either in folid pieces of 

 indeterminate fhape, running in veins thro* 

 rocks, or in fmall lumps in gypfums and 

 lime-ftones, and in confiderable quantity in 

 folfatera and the neighbourhood of volcanos f 

 or cryftalized in pale, tranfparent or femi- 

 tranfparent, ocltagonal or rhomboidal cryf- 

 tals, in the cavities of quartz, and particu- 

 larly in the matrixes of ores, or in the form 

 of fmall needles over hot fprings, or near 

 volcanos, and fometimes in old privies. 



2 dly * United ivttb clay^ as in the alumi* 

 nous ore of la Tolfa, and alfo at Tarnoivitz in 

 Silefta. The former has been already de- 

 fcribed, the latter is a light grey earth, which 

 when dry burfts in water like marl, poflefles 

 a ftrong peculiar fmell like camphor. If it 

 be diftilled, fome fulphur fublimes. 



JOO 



