506 BOAED OF AGRICULTUEE. 



Valuation per two thousand pounds : — 



7.6 pounds of soluble phosphioric acid, 

 99.2 pounds of reverted j^hosphoric acid, . 

 317. povmds of insoluble phospboric acid, . 

 84.4 pounds of nitrogen, .... 



$32 57 



Bradley's Complete Fertilizer for Top-Dressing Grass and Orain. 

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



Guaranteed composition : Total phosplioric acid, 7 to 9 

 per cent. ; soluble phosphoric acid, 5 to 6 per cent. ; re- 

 verted phosphoric acid, 1 to 2 per cent; insoluble phos- 

 phoric acid, 1 to 2 per cent. ; potassium oxide, 5 to 6 per 

 cent, (equivalent to potassium sulphate, 9.25 to 11.1 per 

 cent.) ; nitrogen, 4.11 to 5 per cent, (equivalent to am- 

 monia, 5 to 6 per cent.). 



Per cent. 



Moisture at 100° C. 11.96 



Total phospboric acid, 9.21 



Soluble phospboric acid, 4. 30 



Reverted pbospboric acid, 2.64 



Insoluble pbospboric acid, 2.27 



Potassium oxide, 7.99 



Nitrogen, 4.00 



Insoluble matter, 3.15 



Valuation per two thousand pounds : — 



86. jjounds of soluble phosphoric acid, . 

 62.8 pounds of reverted pbospboric acid, . 

 45.4 pounds of insoluble pbosplioi'ic acid, 

 159.8 pounds of potassium oxide, 

 80. pounds of nitrogen, .... 



$34 99 



Mapes' Potato Manure. 

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



Guaranteed composition : Total phosphoric acid, 8 to 10 

 per cent. ; potassium oxide (sulphate) , 6 to 8 per cent. ; 

 ammonia, 4^ to 5 per cent, (equivalent to nitrogen, 3.7 to 

 4.1 per cent.). 



