COMMERCIAL FERTILIZERS. 



221 



Chittenden's ComjJlete Manure, Grain. 

 (Collected of G. P. Smith, Sunderland, Mass.) 



Guaranteed composition : total phosphoric acid, 8 to 10 

 per cent. ; soluble and reverted phosphoric acid (available), 

 6 to 8 per cent. ; potassium oxide, 5 to 7 per cent. ; ammo- 

 nia, 4.5 to 5.5 per cent, (equivalent to nitrogen, 3.7 to 4.5 

 per cent.). 



rer cent. 

 Moisture at 100° C, 12.90 



• Total phosphoric acid, 

 Soluble phosphoric acid, . 

 Reverted phosphoric acid, 

 Insoluble phosphoric acid, 

 Potassium oxide, 

 Nitrogen (in organic matter), 

 Nitrogen (in nitrates), 

 Insoluble matter, 



Valuation per two thousand pounds : — 



130.4 pounds of soluble phosphoric acid, 

 40. pounds of reverted phosphoric acid, 

 5.8 pounds of insoluble phosphoric acid, 

 105.6 pounds of potassium oxide, . 

 65.8 pounds of nitrogen (in organic matter), 

 7.6 pounds of nitrogen (in nitrates), . 



8.81 

 6.52 

 2.00 



.29 

 5.28 

 2.7» 



.38 

 4.70 



$14 34 



3 20 

 35 



4 49 

 12 83 



1 52 



$36 73 



L. L. Crocker''s Potato and Hop Phosphate. 

 (Collected of Slate and DeWolf, Greenfield, Mass.) 



Guaranteed composition : soluble phosphoric acid, 6 to 8 

 per cent. ; reverted phosphoric acid, 2 to 4 per cent. ; inso- 

 luble phosphoric acid, 1 to 2 per cent. ; potassium oxide, 6 

 to 8 per cent. ; ammonia, 2.5 to 3.5 per cent, (equivalent 

 to nitrogen, 2.1 to 3 per cent.). 



Per cent. 

 Moisture at 100° C, 17.15 



Total phosphoric acid. 

 Soluble phosphoric acid, . 

 Reverted phosphoric acid, 

 Insoluble phosphoric acid. 

 Potassium oxide, 

 Nitrogen, .... 

 Insoluble m^ter. 



10.46 

 , 6.39 

 .20 

 3.87 

 4.52 

 2.65 

 4.07 



