COMMERCIAL FERTILIZERS. 



231 



Valuation per two thousaud pounds ; — 



11.4 pounds of soluble phosphoric acid,. 

 47. pounds of reverted phosphoric acid, 

 61.2 pounds of insoluble phosphoric acid, 

 66.G pounds of potassium oxide, . 

 29.8 pounds of nitrogen. 



$18 36 



L. L. Crocker''s Avimoniated Bone Super phosplialc. 

 (Collected of Fuller and Newton, Springfield, Mass.) 



Guaranteed composition : soluble phosphoric acid, 6 to 8 

 per cent. ; reverted phosphoric acid, 3 to 4 per cent. ; in- 

 soluble phosphoric acid, 1 to 2 per cent. ; potassium oxide, 

 1 to 3 per cent. ; ammonia, 3.5 to 4.5 per cent, (equivalent 

 to nitrogen, 2.9 to 3.7 per cent.) 



Valuation per two thousand pounds : — 



113.4 pounds of soluble phosphoric acid, 

 52.2 pounds of I'everted phosphoric acid, 

 92,4 pounds of insoluble phosphoric acid, 

 24. jjounds of potassium oxide, . 

 64.8 pounds of nitrogen. 



47 

 18 

 54 



02 



14 90 



$38 11 



