go Analym rf ihe lately dhcovered 



ANALYSIS. 

 Experiment XXIX. — 1848 cubic inches of sulphuretted 

 saline water having been slowly evaporated, yielded a grayish 

 white po'Ader, wiiich, when dried over a lamp in a sand 

 bath, at a heat of £23" Fahr., exhaled a peculiar fetid auU 

 phureous odour. 



Experiminl XXX. — This powder was levigated with al- 

 cohol, and digested in that tiuid for four days. The alco- 

 holic solution, when filtered, was of a pale amber colour : oa 

 being evaporated to dryness, and redissolved in water, it de- 

 posited a pearl -colon red powder, which eflfervesctd with 

 muriatic acid, and diffused a smell of sulphuretted hydrogen 

 gas. The quantity of this powder obtained not being accu- 

 rately appreciable, on account of portions of it having been 

 employ*. d for various experiments, 1843 cubic inches ot 

 •water were a^ain evaporated to dryness ; the residue obtained 

 was treated with alcohol as before, and llic insoluble part 

 put aside. The product weighed 262 grains. The repeated ap- 

 plication and abstraction of nitric acid converted it into sul- 

 phate of lime, which, togetlier with the development of 

 the sulphuretted hyd.os^en gas, which it emitted on the affu- 

 sion of acids as stated before, proved it to be hydro sul- 

 phuret of lime, of which 32^- grains aic contained in 231 

 cubic inches, or one gallon of this water. 



Erfyeriment XXXI. — Into the fluid fieed from the hydro- 

 sulj^hurct of lime, fresh pre))ared lime water was suffered to 

 fall till no more cloudiness ensued: muriate of magnesia had 

 therefore been dissolved bv the alcohol. T he obtamcd mag- 

 nesia weighed 58 grains after having been slightly heated ; 

 which gives 29 grains of muriate of magnesia to 231 cubic 

 inches of the sulphuretted saline water. 



Experiment XXXI 1. — The liquid left in the last process 

 was concentrated to dryness in a glass capsule, and redis- 

 solved in as little water as possible. On pourine into this 

 concentrated fluid a solution of neutral carboi'aie of am- 

 monia, a precipitate ensued, which being dried, weighed 

 189 grains. Hence 24^- grains of muriate of hme are con- 

 tained in 231 cubic inches of the water, deducting the lime 



which 



