Old Sulphur Well, Harrogate. 53 



minable quantities : — 



Potash. Chlorine. 



Soda. Bromine. 



Ammonia. Iodine. 



Lithia. Carbonic acid. 



Baryta. Sulphur. 



Lime. Silicic acid. 

 Magnesia. 



In addition were minute traces of strontia, fluorine, phos- 

 phoric acid, alumina, and organic matter. A special examina- 

 tion, made by means of the spectroscope, of the alkaline 

 chlorides obtained from the chloroplatinates from the residue 

 of 10 litres of the water, failed to reveal the presence of thal- 

 lium, caesium, or rubidium. 



In the quantitative analysis at least two determinations of 

 each principal constituent were made. The results are as 

 follows : — 



Parts per 1000. 



1. Fixed constituents dried at 170°-190° 14-7940 



2. Chlorine 8*6724 



3. Bromine 0*02805 



4. Iodine 0*00146 



5. Carbonic acid (total) 0*5003 



6. Lime and baryta together .... 0*6154 



7. Magnesia (total) 0*3368 



8. Lime and baryta in boiled water . , 0*3795 



9. Lime precipated on boiling : — 



Total lime and baryta 0*6154 



Lime and baryta retained in solution 



on boiling 0*3795 



Lime precipitated on boiling . . . 0*2359 



Equal to calcium carbonate ... 0*4206 



10. Lime retained in solution after boiling : — 



Lime and baryta 0*3795 



Deduct baryta 0*0683 



Lime 0*3112 



11. Baryta 0*0683 



12. Lithium chloride 0*01064 



13. Potassium chloride . . . ... . 0*13553 



14. Sodium chloride (total) 12*7034 



15. Ammonium chloride 0*01457 



16. Silica 0*0099 



