COISIMERCIAL FERTILIZERS. 



505 



Valuation per two thousand pounds : 



112. pounds of soluble phosphoric acid, 

 32.8 pounds of reverted phosphoric acid, 

 22. pounds of insoluble phosjihoric acid, 

 51.8 pounds of potassium oxide,. 



123.6 poimds of nitrogen. 



$36 56 



Stoclcbridge's Manure : Seeding Down. 

 (Collected of Peckham & Ross, Worcester, Mass.) 



Guaranteed composition: Soluble phosphoric acid, 2.5 to 

 3 per cent. ; available phosphoric acid, 14 to 15 per cent. ; 

 potassium oxide, 4 to 5 per cent. ; ammonia, 3 to 4 per 

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



Per cent. 



Moistm-e at 100° C, 13.52 



Total phosijhoric acid, 12.74 



Soluble phosphoric acid, 5.31 



Eeverted phosphoric acid, 4.32 



Insoluble phosphoric acid, 3.11 



Potassium oxide, 3.97 



Nitrogen, 4.02 



Insoluble matter, 1.87 



Valuation per two thousand pounds : — 



106.2 pounds of soluble phosphoric acid, 

 86.4 povmds of reverted phosphoric acid, 

 62.2 pounds of insoluble phosphoric acid, 

 79.4 pounds of potassium oxide, . 

 80.4 pounds of nitrogen, 



$34 28 



George E. Holmes^ Bones. 

 (Collected of Peckham & Ross, Worcester, Mass.) 



No guaranty obtained. 



Moisture at 100° C, 

 Total phosphoric acid, . 

 Soluble phosphoric acid, 

 Reverted phosphoric acid, 

 Insoluble phosphoric acid, 

 Nitrogen, 

 Insoluble matter, . 



Per cent. 



4.78 



21.19 



.38 



4.96 



15.85 



4.22 



.23 



