114 AGRICULTURAL EXPERIMENT STATION. [Jan. 



Nitrate of Soda. 



[Sent on for examination by Bolton Farmers' and Mechanics' Association, 



Bolton, Mass.] 



Per cent. 



Moisture at 100° C, 85 



Nitrogen, 16.26 



Valuation per 2,000 lbs., $58.54 



Saltpetre Waste, 



[Sent on from Acton, Mass ] 



Per cent. 



Moisture at 100^ C, .50 



Sodium oxide, 44.93 



Potassium oxide (largely chloride), 4.65 



Nitrogen (in nitrates), 1.87 



The sample represents a trade value of from $10 to $11 

 per ton, and will prove quite effective upon grass lands and 

 in case of forage crops in general. 



Ammonium Sulphate. 



[Sent on for examination by Bolton Farmers' and Mechanics' Association, 



Bolton, Mass.] 



Per cent. 



Moisture at 100° C, 25 



Nitrogen, 21.28 



Valuation per 2,000 lbs $76.60 



Ammonium Sulphate. 



[Used at Experiment Station, 1885.] 



Per cent. 



Nitrogen, 2t).35 



Valuation per 2,000 lbs., $73.26 



Cotton-seed Meal (Coarse). 



Per cent. 



Moisture at 100° C, 6.80 



Organic and volatile matter, . 94.23 



Ash constituents, . . . 5.77 



Phosphoric acid, 1.45 



Potassium oxide, .89 



Calcium oxide, .39 



Magnesium oxide, •. . . .99 



Nitrogen, 6.10 



Insoluble matter, .60 



Valuation per 2,000 lbs., $24.46 



