llrS Intelligence and Miscellaticoits Articles. 



ANALYSES OF BATH WATER AND OF TWO MINERAL SPRINGS IN 

 WINDSOR FOREST. 



Mr. Walcker of the Brighton German Spa finds that an imperial 

 pint of Bath water contains 



Chloride of sodium 1 -89031 gi-ains 



■ magnesium 1'66744 



Sulphate of potash 0-36588 



soda 2-42145 



lime 10-20303 



Carbonate of lime 1*33339 



Protocarbonate of iron 0*03042 



Alumina 0-01885 



Silica 0-40419 



Extractive matter a trace 



18-33496 



Carbonic acid gas! i 140 * f 0-05 cubic inch 



Atmospheric air J "'[1-74 do. do. 



With respect to the mineral springs in Windsor Forest, it is stated 

 that Captain F. Forbes of Winkfield-place, Windsor Forest, discovered 

 them some time ago on his estate : one, the analysis of which is stated 

 under A, in the immediate neighbourhood of his mansion ; the other, 

 mentioned under B, at some distance. Both these mineral springs, 

 belonging to the magnesio-saline class, have since been used by a 

 great number of patients ; and the good effects which have been ob- 

 served from their use have induced Captain Forbes to build a pump- 

 room for the accommodation of the public, 



A pint of the waters contains as under : 



A B 



Carbonate of lime 60630 8-2507 grains 



Sulphate of lime 9-8904 83064 



• potash 1-3549 1-1382 



soda 15-5779 17-1761 



magnesia 20-8704 21-1920 



Nitrate of magnesia 2655 1 traces 



Chloride of magnesium 1 9-6909 263 1 69 



Silica 0-5033 0-9210 



Alumina 0-5721 0-3938 



Extractive matter . , traces traces 



77-1780 83-6951 

 Carbonic acid gas "I at 5 1 ° at the temp, f 2-786 3306 cubic inch. 



Atmospheric air J of the wells \ 0-6 11 0658 do. do. 



Specific gravity at 60° Fahr 1-00737 1-00897 



Royal Institution Journal, April 1829. 



ERRATUM IN MR. EWART'S PAPER, APRIL LAST, P. 254. 



Line 17, for low pressure read low temperature. 



