226 



BOARD OF AGRICULTURE. 



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 : 



145 2 pounds of soluble phosphoric acid, 

 33.4 pounds of reverted phosphoric acid. 

 20 4 jjounds of insoluble phosphoric acid, 

 80. pounds of potassium oxide, 

 42.6 pounds of nitrogen. 



Per cent. 

 17.10 

 9 95 

 7.2G 

 1.67 

 1.02 

 4.00 

 213 

 4.00 



$15 97 



2 67 

 1 22 



3 40 

 9 80 



$33 06 



Steams' Ammoniated Bone Siiperphosphale. 



(Of Steams & Co., Now York ; collected of Wilson & Holden, Worcester, Mass., by 



State Inspector.) 



Guaranteed composition : soluble and reverted phosphoric 

 acid (available), 8 to 10 per cent. ; potassium oxide, 2 to 3 

 per cent. ; ammonia, 3 to 4 percent (equivalent to nitrogen, 

 2.47 to 3.30 per cent.). The manufacturers claim that the 

 article tested represents another brand of his, which by mis- 

 take has been sent on. 



Moisture at 100° C. 

 Total phosphoric acid. 

 Soluble phosphoric acid, . 

 Reverted phosphoric acid. 

 Insoluble phosphoric acid, 

 Potassium oxide. 

 Nitrogen, .... 



Valuation per two thousand pounds : — 



60.80 pounds of soluble phosphoric acid, 

 122.40 pounds of reverted phosphoric acid, 

 22.80 poimds of insoluble phosphoric acid, . 

 43.00 pounds of potassium oxide, . 

 39.80 pounds of nitrogen, . . . . 



Per cent. 

 14.48 

 10.30 

 3.04 

 6.12 

 1.14 

 2.15 

 1.99 



$28 83 



