384 



BOARD OF AGRICULTURE. 



Bowker's Lawn and Garden Dressing. 

 (Collected of H. P. Lucas, Pittsfield, Msss.) 



Guaranteed composition : Available phosphoric acid, 5 to 

 (i per cent. ; potassium oxide, 5 to G per cent. ; ammonia, 5 

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



Per cent. 



Moisture at lOO'^ C, 11.4:3 



Total phosphoric add, . 

 Soluble phosphoric acid, 

 Reverted phosphoric acid, 

 Insoluble phosphoric acid, 

 Potassium oxide, . 

 Niti-ogen, .... 

 Insoluble matter, . 



Valuation per two thousand pounds : — 



243.8 pounds of soluble phosphoric acid, 

 44 4 pounds of I'everted phosjjhoric acid, 

 7.6 pounds of insoluble phosphoric acid, 

 69. pounds of potassium oxide, . 

 71.2 pounds of nitrogen, 



S38 09 



E. Frank Cob's High Grade Ammoniated Bone SuperphospJiate. 

 (Collected of D. J. Barber, North Adams, Mass.) 



Guaranteed composition : Available phosphoric acid, 9 to 

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

 ammonia, 2| to 3 per cent, (equivalent to nitrogen, 2 to 2^ 

 per cent.). ; potassium sulphate, 2 to 3 per cent. 



Per cent. 



Moisture at 100° C , 10 20 



Total phosj^horic acid, . 

 Soluble phosphoric acid. 

 Reverted phosphoric acid. 

 Insoluble phosphoric acid. 

 Potassium oxide, . 

 Nitrogen, 

 Insoluble matter, . 



Valuation per two thousand pounds : 



154.8 pounds of soluble phosphoric acid, 

 47.2 pounds of reverted phosphoric acid, 

 4-S 6 pounds of insoluble phosphoric acid, 

 57 4 pounds of potassium oxide, . 

 40 } pounds of nitrogen, 



$27 65 



