CONTENTS. 



Page. 



Introduction 7 



I. Classification and methods of analysis , 8 



Various classifications of mineral waters 8 



Peale's classification 8 



Crook's classification 8 



Authors' classification 9 



Method of naming mineral waters 10 



Medicinal value of various classes of mineral waters 12 



Methods of analysis 16 



General method of reporting results 16 



Detailed methods of analysis 17 



Hydrogen sulphid 18 



Carbon dioxid (in excess of that necessary to form normal car- 

 bonates) 18 



Carbon dioxid (given off from the bicarbonates when evaporated 



to dryness) 19 



Bicarbonic acid 19 



Nitric acid 20 



Nitrous acid 20 



Free ammonia 20 



Total ammonia 21 



Oxygen-consuming capacity 21 



Chlorin 22 



lodin and bromin 22 



Arsenic 27 



Boric acid 27 



Silica 27 



Iron and aluminum 28 



Iron 28 



Manganese 28 



Calcium and magnesium 28 



Sulphuric acid, potassium, sodium, and lithium 29 



Phosphoric acid 30 



Barium and strontium 31 



II. Commercial waters 32 



Chemical composition of miscellaneous waters bought on the open market. 32 



Discussion of analyses and correspondence with spring owners 74 



III. Saratoga waters sampled at source 84 



Chemical composition 85 



Discussion of analyses 98 



Index to analyses of waters arranged according to class 99 



