378 



BOARD OF AGRICULTURE. 



II. Fine Bones for Fertilizer (of L. B. Darling, Pawtucket, R. I.). 



Moisture and organic matter, 

 Ash constituents, . 

 Phosphoric acid in ash, 

 Nitrogen in organic matter, 



38.50 



61.50 



25.97 



4.07 



42.75 



57.25 



24.60 



4.68 



Valuation per ton (average of both analyses) , 

 492.0 lbs. insoluble phosphoric acid, . 

 93.6 " nitrogen in animal matter, 



$29 52 

 28 08 



$57 60 



The article was a finer ground size than No. I., and sold at 

 $50 per ton in the retail trade ; its quality, judging from the 

 analytical results, is that of good average composition. 



III. — Coarse-ground Bones (of L. B. Darling). 



Moisture and organic matter, 

 Ash constituents, . 



43.80 parts. 

 56.20 " 



IV. — Chicken-Bones (of L. B. Darling). 



Moisture and organic matter, 

 Ash constituents, . 



41.00 parts. 

 59.00 " 



V. — Bonemeal for Cattle (of L. B. Darling) . 



Moisture and organic matter, 

 Ash constituents, . 



42.60 parts. 

 57.40 " 



The ground bones maintain deservedly a most prominent 

 position among our nitrogenous-phosphatic fertilizers, and 

 will retain it with good reason as long as many of our ammo- 

 niated superphosphates contain their present low percentage 

 of nitrogen. It is true, the ground bones of our market con- 

 tain but rarely their original amount of nitrogenous matter, 

 on account of the steaming and rendering process they are 

 subjected to, as a general rule, before being ground into fer- 

 tilizers ; yet they still contain from 2.5 to 4 per cent, of nitro- 



