COMMERCIAL FERTILIZERS. 



L>09 



Valuation per two thousand pounds : — 



79.4 pounds of reverted phosphoric acid, 

 375.4 pounds of insoluble phosphoric acid, . 

 77. pounds of nitrogen, .... 



Fine Bones. 

 (From Lee, Blackburn & Co., Lawrence, Mass.) 



Moisture at 100° C. 



Total phosphoric acid, .... 



Hevortcd and soluble phosphoiic .uid, . 

 Insolul)le phosphoric acid, . . ' . 

 Nitrogen, ...... 



Insolulde matter, 



$8 06 

 16 89 

 13 86 



1538 80 



Per cent. 



4.80 

 26.06 



2.76 

 23.31 



2.99 



2.93 



Valuation per two thousand pounds : - 



6.0. pounds of available phosphoric acid, 

 466.2 pounds of insoluble phosphoric acid, 

 59.8 pounds of nitrogen, 



14 96 

 20 98 

 10 76 



$.36 69 

 Bnrlinr/'fi Fine Bone. 

 (Collected of Parker & Gannett, Boston, Ma.ss.) 



Guanintoed composition : Total phosphoric acid, 25 per 

 cent, ; nitrogen, 3 to 4 per cent. 



Moisture at 100° C, 

 Total phosphoric acid, 

 Reverted phosphoric acid, 

 Insoluble phosphoric acid. 

 Nitrogen, 

 Insoluble matter, 



Valuation per two thousand pounds : - 



135.4 pounds of reverted pho.sphoric acid, 

 397. pounds of insoluble phosphoric acid, 

 71.2 pounds of nitrogen, 



Per cent. 



4.70 



26.62 



6.77 



19.85 



356 



.62 



512 19 

 17 87 

 12 82 



$42 88 



