INSPECTION OF COMMERCIAL FERTILIZERS 

 Commercial Peat Products. 



39 



a Five samples. 



b The mineral constituents present included iron and aluminum oxides .16", 

 .11%, magnesium oxide .08%, insoluble earthy material 1.69%. 



calcium oxide 



Phosphoric Acid Compounds. 



The following table gives the analyses of those fertilizer products valued 

 chiefly for their available phosphoric acid. 



