618 BOARD OF AGRICULTURE. 



Navassa Phosphate (2 Analyses). 



[Jan. 



* Only one test. 



Brockville Phosjihate (1 Analysis). 



Moisture at 100° C, 



Phosphoric acid, 



Insoluble matter, 



Bone-black (5 Analyses). 



Per cent. 



260 



35.21 



6.46 



Phosphatic Slags. 

 [I. German phosphatic slag. II. English slag.' 



