CHAPTER VII. 
CLASSIFICATION OF MINERAL WATERS. 
On account of the complex character of the material, and the 
fact that while one substance may be present in large quanti- 
ties the character of the water is greatly modified by other 
substances which are present in smaller quantity, it is ex- 
tremely difficult to classify mineral waters. The following 
systems of classification are common: 
The French method : 
ro: 1H PURSUE AL NEAL PCOS CVE RR NOPE e Costs Se reel an ey Sten tad Pema EN Sulfur. 
Bicarbonatesss cee 34 sere ene le Len Tisha Taree eT r. Ferruginous. 
RS LUD Bits 4 210 IARI ua WE ie aN Clare Mel aU ota Ah oes ee rN ph Indifferent. 
The German method : | 
Alkaline. iecclssacioes Se NR ART A EAE ee Cet rae Epsom salt. 
EOE: 1] 0s oe RI UR MAIR KERR NEE Vice TVIRD PD GRUE a deat a Tr! Sulfur. 
Commionr'salteer sea haere cise nee ee ee eter Tron. 
Glauber’s salt..... CIA BEML G ttn ee a et a BNA Gti Indifferent. 
The English and American methods are somewhat more 
complex. Doctor Buck” suggests the following : 
Neutral springs, containing chlorides and sulfids. 
Alkaline springs, containing carbonates. 
Acid springs. 
Those having special constituents, such as arsenic, alum, etc. 
Under the first we have two subclasses, the chlorids and 
sulfates. There may be a large excess of one or of the other. 
The bromids and sulfids are also included in this class. The 
Kreutznach water is an exampie of this class containing 
chlorids, and the Crab Orchard water and Friedrichshall water 
are good examples of sulfate springs. 
Under the second class he would include alkaline and neutral 
salts such as carbonates of sodium, potassium, lithium and 
magnesium. The Saratoga waters are good examples of this 
class. Some changes are liable to take place in these springs 
40. Reference Hand-book of Medical Sciences, volume IV, pages 690-694. 
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