Mineral JVaiers at Chellenham. 25 



grains, which, divided by four, gives 374 grains of solid 

 rnatler for every gallon of the water*. 



- 'Expe.rimevt A. — This product, being levigated with alco- 

 hol, was digested in that fluid in the cold for six days. The 

 BoliUiori was decanted, fresh portions of alcohol were added, 

 and the operation rcjieated successively. The insoluble re- 

 sidue was laid aside ior further examinition. 



Experime7it III. — The alcoholic solutions heinc niino-led 

 with a small quantity of water, were rendered turbid by 

 acetate of ainnionia and su'phate of silver; phosphate of 

 soda euiployed (according to Wollastoti) in combination 

 with carbonaicof ammonia, produced much cloudiness. 



Experiment IV'. — Fhe mass which was not soluble in 

 alcohol (Experiment II.) was digested in ci^ht times its 

 own weight of distilled water, suffered to boil, and filtered. 



Experiment V. — The insiiiuble residue of ti^ picccdin<^ 

 ^irocess was boiled in 60 times its quantity cf water: but 

 as no complete solution could b.' effected, it was filtered, 

 and the insoluble part collected. 



Experiment VI. — This insoluble powder, which resisted 

 the action of boiling water, being dried, was covered with 

 muriatic acid, which speedily eflected a solution. The fluid 

 was decomposable by gallic acid, and by succinate of am- 

 monia it was evaporated to drvness ; over the dry mass, 

 nitrous acid was a!)stractcd repeatedly, and lastly the whole 

 was re-dissolveti in muriatic acid. 



Experiment VH. — The obtained muriatic solution, beincr 

 concentrated to the consistcivjc of oil, was mintjlcd with 

 liquid annrionia uniil it ceased to produce a precipiiate. 

 The oxide of iron thus obtained weiahed ig grains, which 

 indicated 7-13 carbonate of iron in each gallon of the 

 water. 



Experiment \'l\l. — The alcoholic solution (Experiment II.) 

 being suffered to stand exposed to the air in an open vessel 

 for six days, was covered with a nndtitude of crystals ; it 

 was evaporated till no more salt a[)peared, and then sudered 



* If the s.imc bulk of water was evaporated in a gl.'.zed liasoii of Wtdpe- 

 wooU-v.?.re, the product was seven p.ercciu. le,i. 



to 



