Mineral IVaters at Cheltenham. 91 



Experiment III. — The same experiment was repeated 

 with saline water of the well that had been boiled, but no 

 such effect took place. 



Experiment IV. — One cubic inch of concentrated sul- 

 phuric acid, mingled with six cubic inches of" the saline 

 water, occasioned a copious discng^gcnjent of air-bubbles, 

 and a slight turbidness ensued. 



Experiment V. — To 130 cubic inches of the water intro- 

 duced into a tubulated retort, the neck of which terminated 

 under a wine-glass filled with strontia water, and standing 

 inverted in the same fluid, were added 3G cubic inches of 

 sulphuric acid. A disengagement of airbubblcs took place, 

 which rendered the slrontia water turbid. The cloudiness 

 disappeared bv the admixture of muriatic acid. 



Experiment VI. — Six cubic inches of fresh prepared lime- 

 water, mingled at the fountain head wilh ten oT the saline 

 water, formed a cloudy mixtin-e, which again was reudcrfd 

 transparent by a few drops of -nitric acid. 



Experiment VII. — Papers slightly stained with carm.ine, 

 with an infusion of rhubarb, and with turmeric, Gutfeied no 

 change when immersed in the water of this well. 



Experiment VIII. — Two grains of crystallized hydrate of 

 strontia, dropt into three cubic inches of the saline water, 

 produced an abundant precipitate, both in the water taken 

 fresh from the well, and in such as had been previously 

 concentrated by boiling. Muriatic acid did not redissolve 

 the precipitate. 



Experiment IX. — Concentrated nitric acid, and muriatic 

 acid, did not produce a change when added either to the 

 fresh -or to the boiled water. 



Experiment X. — Two grains of oxalic acid, di^so!ved in 

 one cubic incii of water, either fresh, or concentrated bv 

 boiling, occasioned a considerable turbidness : the same 

 efleel took place, when five grains of oxalic acid v»'ere added 

 to three cubic inches of water previously mingled with two 

 grains of potash. 



Experiment XI. — Fluate of -soda and oxalate of ammonia 

 [Troduced a copious preci])ilate, both ni the fresh water and 

 such as had been concentrated i)v cvapr^ration. 



B :i Jjxpcrinicnt 



