MINERAL WATERS OF DUNBLANE. 485 



ferences would then be, the presence of about 2.8grains of 

 muriate of soda in each pint of the reduced Dunblane water, 

 the deficiency of 5.5 grains of sulphate, and 0,7 grain of car- 

 bonate of lime, and the absence of 0.2 grain of siliceous earth, 

 differences in all respects probably of no importance whatever. 

 The simple expedient, indeed, of diluting one part of the Dun- 

 blane water with from six to seven parts of warm water, (or if 

 the sulphate of lime in a state of solution should be supposed 

 to be possessed of any active power, with four or five parts) 

 and adding, if the chalybeate impregnation were not found suf- 

 ficiently active, a few drops of tincture of muriate of iron, 

 would probably serve every purpose. And if sufficient confi- 

 dence could be given to the substitution on the part of those 

 employing these waters medicinally, the Dunblane water, thus 

 altered, might probably be taken with as much advantage as 

 the Bath water in the diseases in which it has been found use- 

 ful. 



It is obvious, too, that if the artificial preparation of the 

 Bath water were attempted, it could be done much more easi- 

 ly according to this view, than by endeavouring to dissolve the 

 actual products of its analysis, which, indeed, it would be im- 

 practicable to do. Muriate of *lime, and sulphate of soda, dis- 

 solved in water of the due temperature, with the addition of a 

 minute portion of muriate of iron, would probably afford a 

 composition approaching as nearly to the natural composition, 

 as is either practicable or necessary in the imitation of any mi- 

 neral water. 



A similar view may be taken of the composition of Chelten- 

 ham water. Its analysis affords sulphate of soda, sulphate of 

 magnesia, and sulphate of lime, with muriate of soda, muriate 

 of magnesia, carbonate of magnesia, and oxide of iron. There 

 is no just reason, however, to infer with certainty, that all 

 these are its real ingredients. It is as probable, and, indeed, 



Vol. VII. P. II. 3 Q more 



