388 



BOARD OF AGRICULTURE. 



phosphoric acid, 3.61 per cent. ; insoluble phosphoric acid, 

 14.67 per cent. ; nitrogen, 3.93 per cent, (equivalent to 

 ammonia, 4.77 per cent.). 



Moisture at 1C0° C, 

 Total phosphoric acid, 

 Soluble 2)hosphoric acid, 

 Reverted phosphoric acid, 

 Insoluble phosphoric acid, 

 Nitrogen, 

 Insoluble matter, . 



Valuation per two thousand pounds 



157.6 pounds of reverted f)hosphoric acid, 

 320. pounds of insoluble phosphoric acid, 

 76.4 pounds of nitrogen, 



Per cent. 



8.60 

 23.88 

 none. 



7.88 

 16.00 



3.82 

 .47 



$11 82 

 16 00 

 11 46 



$39 28 

 Breck's Lawn and Garden Dressing. 



(Standard Fertilizer Company, Boston; collected of Joseph Breck & Sons, Boston, 



Mass.) 



Guaranteed composition : Total phosphoric acid, 8 to 9 

 per cent. ; potassium oxide, 4 to 6 per cent. ; ammonia, 5 to 

 6 per cent, (equivalent to nitrogen, 4 to 5 per cent.). 



Moisture at 100° C, 

 Total phosphoric acid, 

 Soluble phosphoric acid. 

 Reverted phosphoric acid. 

 Insoluble phosphoi'ic acid. 

 Potassium oxide, . 

 Nitrogen, 

 Insoluble matter, . 



Valuation per two thousand pounds : 



141.4 pounds of soluble phosphoric acid, 

 72.8 pounds of reverted phosphoric acid, 

 38. pounds of insoluble jihosphoric acid, 

 77 2 pounds of potassium oxide, . 



101.8 pounds of nitrogen. 



Per cent. 



7.60 

 12.51 

 7.07 

 3.64 

 1.80 

 3.86 

 5.09 

 2.63 



fll 31 



5 46 



1 08 



3 28 



17 31 



138 44 

 Breck's Top Dressing. 



(Standard Fertilizer Company, Boston ; collected of Joseph Breck & Sons, Boston, 



Mass.) 



Guaranteed composition : Total phosphoric acid, 6 to 8 

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



