COMMERCIAL FERTILIZERS. 



387 



potassium oxide, 2.09 per cent. ; ammonia, 3 to 4 per cent, 

 (equivalent to nitrogen, 2.5 to 3.3 per cent.). 



Moisture at 100° C, . 

 Total phosphoric acid, . 

 Soluble phosphoric acid. 

 Reverted phosphoric acid, 

 Insoluble phosphoric acid, 

 Potassium oxide, . 

 Nitrogen, 

 Insoluble matter, . 



Valuation per two thousand pounds : 



174. pounds of soluble phosphoric acid, 

 56.2 pounds of reverted phosphoric acid, 

 38. jjouuds ofinsoluble phosphoric acid, 

 41.8 pounds of potassium oxide, . 

 C1.6 pounds of nitrogen, 



WJiittimore's Complete Manure. 



(Wbittimore Brothers, Wayland, Mass. ; collected of H. P. Ilodgers 



bury, Mass.) 



Guaranteed composition : Available phosphoric acid, 8 to 

 12 per cent. ; potassium oxide, 3 to 5 per cent. ; ammo- 

 nia, 2 to 4 per cent, (equivalent to nitrogen, l.G to 3 3 per 

 cent.). 



Moisture at 100° C, . 

 Total phosphoric acid, 

 Soluble phosphoric acid, 

 Reverted phosphoric acid, 

 Insoluble phosphoric acid, 

 Potassium oxide, . 

 Nitrogen, 

 Insoluble matter, . 



Valuation per two thousand pounds : 



155.4 pounds of soluble phosphoric acid, 

 118.2 pounds of reverted phosphoric acid, 

 8.6 pounds ofinsoluble phosphoric acid, 



46.2 pounds of potassium oxide, . 



53 2 pounds of nitrogen, 



Per cent. 



12.38 

 14.11 

 7.77 

 5.91 

 .43 

 2.31 

 2.66 

 2.05 



§12 43 



8 87 

 26 



1 96 



9 04 



§32 56 

 Ground Bone. 



(Hargrave's Manufacturing Company, Fall River, Mass.; collected at Mill.) 



Guaranteed composition : Total phosphoric acid, 18.8 per 

 cent. ; soluble phosphoric acid, .51 per cent. ; reverted 



