VIEWS SHOWING METHODS OF MINING PEBBLE 
PHOSPHATE IN FLORIDA. 
Fig. 14.—View in the pit of the Pembroke mine of the Coronet Phosphate 
Company, showing in the back ground, removal of overburden by steam shovels. 
In the foreground may be seen one of the hydraulic guns used in mining the 
land pebble phosphate. The phosphate rock, together with the matrix, is washed 
into sump holes and is then pumped through pipe lines to the washer plant. 
Fig. 15.—A near view in the same pit. Mining phosphate rock by the hy¬ 
draulic method. This method is used in many of the mines in removing the 
overburden as well as in mining the rock. 
Fig. 16.—Phosphate washer. View taken at the plant of the Dominion Phos¬ 
phate Company. 
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