228 CHEMICAL FERTILIZERS 



of potash. Up to the present the German potash deposits 

 have been allowed to monopolize the whole business of 

 mineral potash. It is by no means certain that there are not 

 many other potash deposits in the world that can be worked 

 equally well ; there is no real evidence for or against the 

 opinion that there may be considerable amounts of potash 

 even in the British Isles. The system of working salt 

 measures with the aid of water is the best means of disguising 

 the possible presence of potash, and investigations into this 

 source of potash should be made. Undoubtedly, when the 

 German and French potash deposits are more fully opened 

 up, the world is likely to see substantial increases of potash 

 available for fertilizing purposes. If properly utilized there 

 need be no risk of a glut of potash. 



REFERENCES TO SECTION I. 



Scott, " The Manufacture of Synthetic Nitrogen by Electric Power," 

 Journ. Soc. Chem. Ind., 1917, p. 771. 



Goodwin, "Waste-heat Boilers," Journ. Soc. Chem. Ind., 1919, p. 213 T. 



" Nitrogen Fixation," Journ. Soc. Chem. Ind., 1917, p. 1081. 



Anderson, " The World's Supply of Nitrogenous Fertilizers," Chem. 

 News, July, 1919, p. 6. 



Ewan and Napier, " The Fixation of Nitrogen by Mixtures of Barium, 

 Oxide and Charcoal," Journ. Soc. Chem. Ind., 1913, p. 467. 



" Barium Nitride," Journ. Soc. Chem. Ind., 1919, p. 462 A. 



Tucker, " The Serpek Process for Nitrogen Fixation," Journ. Soc. Chem. 

 Ind., 1913, p. 1143. 



Ackman, "Future of the Nitrate Industry," The Chemical Age, 1920, 

 p. 33. 



"Production of Ammonia from Atmospheric Nitrogen," Journ. Soc. 

 Chem. Ind., p. 426 A. 



