1 58 Intelligence and Miscellaneous Articles. 



ANALYSIS OF TWO SULPHUREOUS SPRINGS NEAR WEYMOUTH. 

 BY R. PHILLIPS, F.R.S. &C. 



One of these springs, called the Nottington Spa, rises about 

 three miles from Weymouth, and has been known and frequented 

 for a considerable time. The other, named the Radipole Spa, is 

 of recent discovery, and is only one mile distant from the town. 



The saline contents of these waters are so small in quantity, that 

 they must be considered as quite inert; and therefore those who 

 wish to avail themselves merely of the sulphuretted hydrogen, may 

 take them in larger quantity than if they were active in other re- 

 bpects. 



After repeated trials I have found scarcely any variation in the 

 quantity of the saline matter of the Nottington Spa; but that of the 

 Radipole has varied a little. The proportions of sulphuretted hy- 

 drogen, however, differed considerably at different times in both. 

 The only circumstance which I have constantly observed respecting 

 the sulphuretted hydrogen is, that the Radipole Spa always con- 

 tained the larger proportion. 



The nature and quantity of the saline and earthy contents of the 

 springs were ascertained by the usual well-known methods. The 

 quantity of sulphuretted hydrogen was determined by putting ni- 

 trate of silver into a bottle, and pumping the fresh water upon it. 

 Chloride and sulphuret of silver were of course precipitated together; 

 the former was dissolved by ammonia, in which the sulphuret of 

 silver is insoluble ; and this being washed and dried, the sulphu- 

 retted hydrogen gas was calculated from the quantity of sulphuret 

 obtained. 



Contents of an Imperial gallon : — 



Nottington Spa. 



Sulphuretted hydrogen gas .... 4*5 cubic inches. 



Azotic gas 9'4 



Oxygen gas 1* 



Bicarbonate of lime 33*62 grains. 



. — magnesia 4*28 



iron 0*20 



Common salt 9*70 



Sulphate of lime 1*70 



magnesia 1*93 



soda 1-89 



Alumina 1*14 



Silica 1*38 



Carbonaceous matter 0*26 



Radipole Spa. 

 Sulphuretted hydrogen gas .... 6*1 cubic inches. 



Azotic gas 10*4 



Oxygen gas 1*4 



Bicarbonate of lime, and a trace of] on . , 

 Bicarbonate of magnesia / 39 * 41 S rain '* 



