SEIDLITZ POWDERS

composed of two powders; are sO named because mixed in water their composition when action resembles that of the natural and sparkling aperient water of the spring village of Seidlitz in - Bohemia. in the contents of the blue paper, com-~ The a mixture of 120 grains of the posed of of sodium and pota ium and tartrates of sodium bicarbonate, are 40 grains di olved in about half a tumbler first Then the contents of the of water. consisting of 38 grains of white paper, acid, are stirred in. The mixture tartaric drunk while it is still efferves cing is then the evolution of carbon dioxide, through as a mild cooling aperient. when it acts