^8 



Experiment Station Report. 



Reverted i^hosphoric acid, 

 Insoluble phosphoric acid, 

 Nitrogen, .... 

 Insoluble matter, 



Per cent. 

 3.25 

 8.79 

 6.57 



0.77 



Florida Marl. 

 (Sent from Boston, Mass.) 



Moisture, at 100° C. 

 Calcium oxide, 

 Magnesium oxide, 

 Ferric oxide, . 

 Phosphoric acid. 

 Insoluble matter, 



Per cent. 

 0.60 



41.75 

 1.03 

 0.36 

 2.72 



21.95 



Sponge Refuse. 

 (Sent from Albany, N. Y.) 



Moisture, at 100 

 Nitrogen, . 

 Ferric oxide, . 

 Calcium oxide, 

 Magnesium oxide, 

 Phosphoi'ic acid, 

 Insoluble matter, 



C, 



Per cent. 

 7.25 

 2.43 

 0.17 

 3.94 

 127 

 3.19 

 39.05 



Bones. 



(Pure Dissolved Raw Bones. Sent from Amherst, Mass.) 



Moisture, at 100° C, 

 Total phosphoric acid. 

 Soluble phosphoric acid, . 

 Reverted phosjjhoric acid, 

 Insoluble phosphoric acid. 

 Nitrogen, .... 



Valuation per two thousand poui^ls, $40.67. 



Per cent. 

 10.23 

 16.03 

 7.76 

 3.83 

 4.44 

 2.64 



Fme Oround Baw Bone. 

 (Sent on from Worcester, Mass.) 



Moisture, at 100° C, 



Total phosphoric acid, 



Nitrogen, 



Valuation per two thousand pounds, $43.86. 



Per cent. 



4.63 



22.41 



3.69 



