348 



BOARD OF AGRICULTURE. 



Warranted Peruvian Guano. 

 (Ui)bson, Hutardo, & Co. 



collected of Messrs. Rice Brothers, "Worcester, Mass.) 



Per cent. 



14.72 

 52.16 



Moisture ........ 



Organic and volatile matter ..... 



Ash constituents ........ 47.87 



Total phosphoric acid ....... 14.94 



Soluble phosiihoric acid ...... 6.04 



Reverted phosphoric acid ...... 1.98 



Insoluble phosphoric acid ...... 6.92 



Nitrogen ......... 7.75 



Potassium oxide . . . . . . . .3.85 



Insoluble matter . . . . . . . . 7.99 



Valuation per ton of two thousand pounds : — 



120.8 pounds of soluble phosphoric acid . . . §15 OS 



39.6 pounds of reverted phosphoric acid . . . 3 56 



138.4 pounds of insoluble phosphoric acid . . . 8 30 



155 pounds of nitrogen . . . . . . 37 20 



77 pounds of potassium oxide . . . . . 3 85 



."$67 99 

 Guaranteed Peruriau Guano. 



(Collected of Messrs. Horton & Phelps, Northampton, Mass.) 



Moisture 



Organic and vohitile matter 



Asli constituents 



Total phosphoric acid 



Soluble phosphoric acid . 



Reverted phosphoric acid 



Insoluble phosphoric acid 



Nitrogen 



Potassium oxide 



Insolul)le matter . 



Per 



7, 

 38. 

 61 

 23, 

 3 

 3 

 16 



6 



2 



7 



cent. 



.02 



35 



,65 



10 



30 



30 



,50 



,57 



90 



,60 



Valuation per ton of two thousand pounds : — 



66 pounds of soluble phosphoric acid . . . . $8 25 



66 pounds of reverted phosphoric acid . . . 5 94 



330 pounds of insoluble phosphoric acid . . . 19 80 



131.4 pounds of nitrogen . . . . . . 31 54 



58 pounds of potassium oxide . . . . . 2 90 



Guaranteed Peruvian Guano. 



(Collected of Messrs. Bagg & Batchelder, Springfield, Mass.) 



Moisture 



Organic and volatile matter 



Ash constituents ....... 



$68 43 



Per cent. 



15.500 

 51.850 

 48.150 



