30 
Florida geological survey—14TH annual report 
increased from $3.79 in 1919 to $4.99 in 1920. The hard rock produc¬ 
tion increased 114,782 tons. The average value of this variety increased 
from $8.59 per ton in 1919 to $11.31 in 1920. For soft phosphate there 
was a slight decrease in the amount marketed, the average value per ton 
remaining practically the same in 1920 as in 1919. 
“The total production of phosphate rock in Florida since the begin¬ 
ning of the industry in 1888 to the close of 1920, according to statistics 
collected by the Florida Geological Survey and the United States Geo¬ 
logical Survey, is estimated to be 40,239,898 tons, with a total valuation 
of $156,318,078.” 
LIST OE PHOSPHATE MINING COMPANIES OE FLORIDA, 1920 
Acme Phosphate Co.Morriston, Fla. 
Alachua Phosphate Co.Gainesville, Fla. 
American Agricultural Chemical Co.. .2 Rector St., New York, N.Y., and Pierce, Fla. 
American Cyanamid Co...511 Fifth Ave., New York, N. Y., and Brew¬ 
ster, Fla. 
American Hard Rock Phosphate Co.. . .Floral City, Fla. 
Armour Fertilizer Works ...209 W. Jackson Blvd., Chicago, Ill., and Bar¬ 
tow, Fla. 
P. Basset.Newberry, Fla. 
Peter B. & Robert S. Bradley.92 State St., Boston, Mass., and Floral City, 
Fla. 
J. Buttgenbach & Co.22 Ave. Marnix, Brussels, Belgium, and Dun- 
nellon, Fla. 
C. & J. Camp.. .Ocala, Fla. 
Charleston, S. C., Mining & Manufac¬ 
turing Co.Richmond, Va., and Ft. Meade, Fla. 
Coronet Phosphate Co. ...99 John St., New York, N. Y., and Plant City, 
Fla. 
Cummer Lumber Co.453 St. James Bldg., Jacksonville, Fla., and 
Newberry, Fla. 
Dunnellon Phosphate Co.106 E. Bay St., Savannah, Ga., and Rockwell, 
Fla. 
Florida Phosphate Mining Corporation.P. O. Box 1118, Norfolk, Va. and Bartow, Fla. 
Florida Soft Phosphate & Lime Co.Ocala and Citra, Fla. 
Franklin Phosphate Co. (P. J. & J. 
H. Norfleet, Lessees) .Newberry, Fla. 
Holder Phosphate Co... 3353 Jefferson Ave., Cincinnati, Ohio, and 
Inverness, Fla. 
Independent Chemical Co.33 Pine St., New York, N. Y., and Mulberry, 
Fla. 
International Agricultural Corporation. 61 Broadway, New York, N. Y., and Mul¬ 
berry, Fla. 
Mutual Mining Co...102 E. Bay St., Savannah, Ga., and Floral 
City, Fla. 
Morris Fertilizer Co.801 Citizens & Southern Bank Bldg., Atlanta, 
Ga., and Bartow, Fla. 
Norfleet & Williams (DowningPhos- 
phate Co., Lessees) . 
Newberry, Fla. 
