[ 208 ] 



XXXVIII. Analysis of the laldy discovered Mineral Wateri 



• at CkeUenham ; and also of oilier Medicinal Springs in iii 



Neighl'Giir/iood. By FaEDEUicK Accum, M.R.I.A. 



Operative Chemist, Lecturer on Practical Chemistry aiid 



on Mineralogy and Pharmacy, ^c. 



[Continued from p. 92.] 



ANALYSIS OF THE CARBONATED STEEL WELL. 



Situation of th>; Spring. 



V. /F a tlifferent nature from the ]pM described waters, is the 

 sp ring called the Carbonated Steel Well. This spring is 

 situated near Hygeia House, OGO feet from the last described 

 vva^l ; it rises out of a black ferruginous mould. The water 

 line 5 the reservoir, as well as the channels through which it 

 flow.s, with a yellow brown precipitate. 



Physical Peopeeties of the Water. 

 Tb is water at the fountain head is perfectly colourless, 

 and t ransparent. It has a sHglU odour, resembling that of 

 iron ' when moistened, or rubbed in contact with water. It 

 spark les rathermore than common spring water; its laste is 

 stroa gly chalybeate ; when suflered to be exposed to the 

 opea air for six hours, the inner side of the vessel containing 

 it bee omes studded with air bubbles ; in 12 hours the water 

 loses its chalybeate laste. The same eftect ensues instantly, 

 whec 1 it is made to boil, which renders the water turbid, 

 and ( :auses a brown granular precipitate to fall down. The 

 temf icrature of the spring at 78 Fahr., was 53'5, the baro- 

 met( r indicating 29'5. The specific weight of the water 



was 2-39. 



Examination by Re-agents. 



E .xperiment L — Succinate of soda, when added to this 

 wat er, previously concentrated, by evaporation, and mingled 

 wit h a few drops of nitric acid, occasioned a brown preci- 

 pit; ite. 



'Experiment IL — Prussiale of ammonia and prussiate of 

 pa tash tinged the water blue ; boiled water did not suffer any 

 all cration from these tests. 



Experiment 



