1889.] PUBLIC DOCUMENT — No. 4. 617 



Caribbean Guano (Orchilla) (10 Analyses). 



South American Bone Ash. 



Per cent. 



Moisture at 100° C, 7.00 



Calcium <?yide, 44.89 



Phosphoric acid, 35.89 



Insoluble matter, 4.50 



South Carolina Bock Phosphate (4 Analyses). 



Only eBtimute. 



