COMiMERCIAL FERTILIZERS. 



239 



XIV. 



Bradleifs XL Ammoniated Superphosphate. 



(Messrs. Rice Brothers, Worcester, Mass.) 



Per cent. 



Moisture lost at 100° C 15.77 



Organic and volatile matter 52.72 



Ash constituents 47.29 



Total phosphoric acid ...... 10.64 



Soluble phosphoric acid ...... 7.70 



Reverted phosphoric acid ..... 1.04 



Insoluble phosphoric acid 1.90 



Nitrogen 2.97 



Potassium oxide ....... 2.40 



Insoluble matter . . . . . . . 3.19 



Valuation per ton of two thousand pounds : — 



154 pounds of soluble phosphoric acid . . f 18 48 



38 pounds of insoluble phosphoric acid . . 2 28 



20.8 pounds of reverted phosphoric acid . . 1 88 



59.4 pounds of nitrogen . . . . . 11 88 



48 pounds of potassium oxide . . . . 2 16 



^36 68 



XV. 



Guy^s German Plant-Food for Flowers. 



(C. W. Guy, Boston, Mass.) 



Per cent. 



Moisture lost at 100° C 3.35 



Organic and volatile matter 51.73 



Ash constituents ....... 48.27 



Total phosphoric acid . . . . . . 11.89 



Sokible phosphoric acid 10.71 



Reverted phosphoric acid .12 



Insoluble phosphoric acid 1.06 



Nitrogen ........ 6.99 



Potassium oxide .21 



Insoluble matter ....... 3.48 



Valuation per ton of two thousand pounds : 



214.2 pounds of soluble phosphoric acid 

 2.4 pounds of reverted phosphoric acid 

 21.2 pounds of insoluble phosphoric acid 



139.8 pounds of nitrogen 

 42 pounds of potassium oxide . 



J2o 70 



1 27 



27 96 



19 



$55 34 



