COMMERCIAL FERTILIZEES. 



515 



Moisture at 100° C, 

 Total jjhosphoric acid, . 

 Soluble phosphoric acid, 

 Reverted phosphoric acid, 

 Insoluble phosphoric acid. 

 Nitrogen, 

 Insoluble matter, . 



Per cent. 



8.22 



24.31 



.47 



7.41 

 16.90 



3.13 



1.95 



Valuation per two thousand pounds : 



9.4 pounds of soluble phosphoric acid, 

 148.2 pounds of revei'ted phosphoric acid, 

 338.0 pounds of insoluble phosphoric acid, 

 62.6 pounds of nitrogen. 



$0 75 

 11 12 

 16 90 



10 02 



$38 79 



Baugh's Double Eagle Phosphate. 

 (Collected of J. C. Stanley, Newbnryport, Mass.) 



Guaranteed composition : Available phosphoric acid, 7 to 

 8 per cent. ; ammonia, 2;^ to 3 per cent, (equivalent to ni- 

 trogen, 2 to 2|^ per cent.). 



Moisture at 100° C, 

 Total phosphoric acid, . 

 Soluble phosi^horic acid, 

 Reverted phosphoric acid. 

 Insoluble phosphoric acid. 

 Potassium oxide, . 

 Nitrogen, 

 Insoluble matter, . 



Per cent. 



13.82 



12.55 



5.80 



1.76 



4.99 



none. 



. 2.22 



5.34 



Valuation per two thousand pounds : 



116.0 pounds of soluble phosphoric acid, 

 35.2 poimds of reverted phosphoric acid, 

 99.8 pounds of insoluble jihosphoric acid, 

 44.4 pounds of nitrogen. 



$22 68 



Dow's Nitrogenous Superphosphate. 

 (Collected of J. Stackpole & Sons, Ipswich, Mass.) 



Guaranteed composition : Available phosphoric acid, 8 

 to 10 per cent. ; potassium chloride, 3 to 4 per cent. ; 



