60 RICHARD CASTLEMAN EVANS AND FY, WISELOGLE Vol. 67 six hours. After cooling, the sirup was diluted with 200 ml. of water, pt a temperature below 60, and 85 g. of sodium nitrate in 250 ml. of water was added, at 30-42". The temperatrue rose to 48'. The mixture, standing at room temperature, crystallized after one and a half hours. After eizhteen hours, it was filtered, the cake washed with 100 ml. of water at 4", and the ground, air-dried product ...
