342 



BOARD OF AGRICULTURE. 



Moisture at 100° C, 

 Total phosphoric acid, . 

 Soluble 2)hosplioric acid, 

 Reverted phosphoric acid, 

 Insoluble phosphoric acid, 

 Potassium oxide (sulphate). 

 Nitrogen, 

 Insoluble matter, . 



Valuation per two thousand pounds : — 



153.6 pounds of soluble phosi^horic acid, 

 32.8 pounds of reverted phosphoric acid, 

 20.G pounds of insoluble phosjjhoric acid, 



170. pounds of potassium oxide, . 

 87.4 pounds of nitrogen, 



8.23 

 10.45 

 7.68 

 1.64 

 1.03 

 8.50 

 4 87 

 1.20 



$12 29 



2 46 



62 



9 35 



U 86 



$39 58 



Williams^ Clark & Co.'s ^^Americus" for Tobacco. 

 (Collected of John Sullivan, Northampton, Mass.) 



Guaranteed composition : Total phosphoric acid, 5 to 6 

 per cent. ; soluble phosphoric acid, 3 to 4 per cent. ; reverted 

 phosphoric acid, 1 to 2 per cent. ; insoluble phosphoric acid, 

 1 to 2 per cent. ; potassium oxide, 7 to 8 per cent, (equiv- 

 alent to potassium sulphate, 13 to 15 per cent.) ; ammonia, 

 6 to 7 per cent, (equivalent to nitrogen, 5 to 5.8 per cent.). 



Moisture at 100° C, 

 Total phosphoric acid, . 

 Soluble phosphoric acid. 

 Reverted phosjihoric acid, 

 Insoluble j^hosphoric acid. 

 Potassium oxide, . 

 Nitrogen, 

 Insoluble matter, . 



Valuation per two thousand pounds : — 



102.4 pounds of soluble phosphoric acid, 

 36.8 pounds of reverted phosphoric acid, 

 11.6 pounds of insoluble phosphoi-ic acid, . 



168.2 pounds of potassium oxide, . 

 48. pounds of nitrogen (in organic matter), 

 32. pounds of nitrogen (in ammonia salts), 



Per cent. 



9.18 

 7.54 

 5.12 

 1.84 

 .58 

 8.41 

 4.00 

 2.60 



$34 63 



