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XIV. A General Formula for the Analysis of Mineral Waters. : 
By Joun Murray, M.D. F.B.S. E. 
(Read June 7. 1816. ) 
HE analysis of Mineral Waters has always been consider- 
- edas a difficult operation. Numerous methods are em-. 
ployed to discover their ingredients, and estimate their quan- 
tities, many of which are liable to errors. This diversity of 
method itself is a source of discordant results. And to those 
not familiar with such researches, it presents the difficulty of- 
ten of determining what process is best adapted to discover a 
particular composition. Hence the advantage of a general for- 
mula, if this could be given, applicable to the analysis of all 
waters. The views which have been stated in the papers, 
connected with this subject, which I have had the honour of 
submitting to the Society, have suggested a method which ap- 
pears to me to admit of very general application, and to be- 
simple, not difficult of execution, nor liable to any sources of 
error but what may be easily obviated. The principles on 
which this method is founded, and the details of the process 
itself, form the subject of the following observations. 
Two methods of analysis have been employed for discover- 
ing the composition of mineral waters,—what may be called 
Kk 2 the 
