266 AGRICULTURAL EXPERIMENT STATION. [Jan. 



5. Analyses, etc. — Continued. 



South Carolina Phosphate. 

 [Sent on from Amherst, Mass. I., finely ground " Floats ; " II., Apatite.] 



Mona Island Guano. 

 [Sent on by J. Campbell & Co., New York, N 



MoistM-e at 100° C, 



Ash, 



Total phosphoric acid, 



Soluble iihosphoric acid, .... 



Reverted phosphoric acid (7| cents per pound). 



Insoluble jjliosphoric acid (3 cents per pound), 



Calcium oxide, 



Potassium oxide, 



Nitrogen (17 cents per jjound), 



Insoluble matter, 



Valuation per ton, . 



Y.] 



Per Cent. 



12.52 



75.99 



21.88 



.00 



7.55 



14.33 



37.49 



Trace. 



.76 



2.45 



$22 50 



