n 



276. Mapes' Complete Manure. Collected of W. H. Earle & Co.. 



Worcester, Mass. 



Guaranteed composition': ammonia, 6 to 7 per cent, 

 (equivalent to nitrogen 5 to 5.76 per cent.) ; phosphoric 

 acid, 10 to 12 per cent. ; potassium oxide, 3 to 4 per cent. 



277. Williams, Clark & Co.'s Ammoniated Bone Superphosphate. 



Collected of B. L. Bragg & Co., Springfield, Mass. 



Guaranteed composition : ammonia, 2 to 3 per cent, 

 (equivalent to nitrogen 1.6 to 2.47 per cent.) ; total phos- 

 phoric acid, 10 to 13 per cent. ; soluble phosphoric acid, 6 

 8 per cent. ; reverted phosphoric acid, 3 to 4 per cent. : in- 

 soluble phosphoric acid, I to 3 per cent. ; potassium sul- 

 phate, 4 to 6 per cent, (equivalent to potassium oxide, 2 to 

 3 per cent.) ; magnesium sulphate, 3 to 4 per cent. 



274 275 276 277 



^ Pounds per hundred. 



Moisture at 100° C. 12.30 10.48 16.00 13.03 



Total phosphoric acid, 13.12 15.86 14.40 12.73 



Soluble '• " 7.80 4.54 1.63 9.76 



Reverted " '' 2.12 5.38 7.89 1.86 



Insoluble " " 3.20 5.94 4.88 1.01 



Nitrogen, 3.23 2.13 4.58 3.04 



Potassium oxide, 1.76 2.45 3.54 2.51 



Insoluble matter, 5.28 1.33 1.20 1.20 



Valuation per 2000 pounds, $33.12 $31.28 $38.85 $35.94 



C. A. GOESSMAN, Director, 



Amherst, Mass. 



The Bulletin of the Experiment Station tvill be sent free of charge to 

 all parties interested in its work, on application. Applications for 

 Annual Reports will receive at'.ention as soon as extra copies are re- 

 ceived for distribution. 



J. E. Williams, Piinter, Amherst, Mass. 



