The minerals which are used in the manufacture of water should also be pure chemically and manufactured in a sanitary water. The common minerals employed are salt, sulphate of soda, sulphate of magnesia, sulphate of lime, carbonate of lime, carbonate of lithia, phosphates of iron, soda and potash, borax, bromids, iodids, salts of aluminum, salts of manganese and salts of ammonia. These mineral constituents, in order to secure the best results, should be of the finest quality and free from any dirt or contamination of any description.

Magnitude Of The Industry

It is difficult to obtain statistics of the magnitude of the industry in artificial waters. The quantity of bottled mineral water used in the United States is probably over 100,000,000 gallons annually. This includes the quantity which is drunk directly at the mineral springs and bottled for commercial use. The annual value of these waters is probably from 20 to 25 million dollars. The amount of artificial water produced is of course considerably less, but I have no reliable data regarding the entire amount. Plain water without any addition of minerals, both carbonated and still, is bottled and sold in large quantities.