COMMERCIAL FERTILIZERS. 



353 



Valuation per 



105. pounds of 

 93.8 j)ounds of 

 96.4 povinds of 

 32.2 pounds of 

 50.8 pounds of 



two thousand pounds :- 



soluble pliosplioi'ic acid, 

 reverted phosijhoric acid, 

 insoluble phosphoric acid, 

 potassium oxide, . 

 niti'ogen, 



Pure Ground Bones. 



$8 40 



7 04 

 2 89 

 1 37 



8 64 



$28 34 



(Warren Glover, North Grafton, Mass. ; collected of J. & J. A. Rice, Worcester, 



Mass.) 



I'er cent. 



Moisture at 100° C, 7.95 



Total phosphoric acid, . 



Soluble phosphoric acid, 

 Reverted phosphoric acid. 

 Insoluble phosphoric acid, 

 Nitrogen, 

 Insoluble matter, . 



Valuation per two thousand pounds : — 



124.6 pounds of reverted phosphoric acid, 

 304.8 pounds of insoluble phosphoric acid, . 

 84. pounds of niti'ogen, .... 



21.47 



none. 



6.23 



15.24 



4.20 



1.53 



$9 35 

 12 19 

 11 76 



$33 30 



Lawn Dressing. 



(Manufactured by L. B. Darling Fertilizer Company, for Earle & Peckham, Wor- 

 cester, Mass. ; collected of Earle & Peckham, Worcester, Mass.) 



Guaranteed composition : Total phosphoric acid, 6 to 8 per 

 cent. ; available phosphoric acid, 5 to 7 per cent. ; potas- 

 sium oxide, 4 to 5 per cent. ; ammonia, 4 to 5 per cent, 

 (equivalent to nitrogen, 3.3 to 4.1 per cent.). 



Moisture at 100° C, 



Total phosphoric acid, 



Soluble phosphoric acid, .... 

 Revelled phosphoric acid, .... 

 Insoluble phosphoric acid, .... 



Potassium oxide, 



Nitrogen, 



Insoluble matter, 



Valuation per two thousand pounds : — 



68. pounds of soluble phosphoric acid, 

 55.2 pounds of reverted phosphoric acid, 

 41.2 pounds of insoluble phosphoric acid, 

 67.4 pounds of potassium oxide, . 

 80.6 pounds of nitrogen. 



$27 38 



