MINERAL INDUSTRIES. 
15 
International Phosphate Co.-27 State St., Boston, Mass., and Ft. 
Meade, Fla. 
Interstate Chemical Corporation-21 Broad St., Charleston, S. C., and 
Bowling Green, Fla. 
Istachatta Phosphate Co.-Istachatta, Fla. 
Lakeland Phosphate Co.-Lakeland, Fla. 
Leland Phosphate Co.-Croom, Fla. 
Mutual Mining Co._102 E. Bay St., Savannah, Ga., and 
Floral City, Fla. 
Meredith-Noble Phosphate Co._Somerville, N. J., and Morriston and 
Romeo, Fla. 
Palmetto Phosphate Co.-812 Keyser Bldg., Baltimore, Md., and 
Tiger Bay, Fla. 
Phosphate Mining Co._55 John St., New York, N. Y., and Nich¬ 
ols, Fla. 
Prairie Pebble Phosphate Co._ 5 i Broadway, New York, N. Y., and 
Mulberry, Fla. 
Schilmann & Bene_Ocala, Fla. 
Societe Franco-Americaine des Phos¬ 
phate de Medulla (Successor to 
Standard Phosphate Co.)_Christina, Fla. 
Societe Universelle de Mines, Industries 
Commerce et Agriculture_Paris, France, and Pembroke, Fla. 
Southern Phosphate Development Co._Ocala and Inverness, Fla. 
Swift & Co. -Union Stock Yards, Chicago, Ill., and 
Bartow, Fla. 
T. A. Thompson-Ft. White, Fla. 
SAND AND GRAVEL. 
The sancl produced in Florida is used for building and paving 
and for railroad ballast. The gravel produced finds its chief use 
for road making and for road ballast. The total production of sand 
and gravel for 1916 was 86,452 tons, valued at $42,352. 
The companies reporting the production of sand and gravel in 
Florida during 1916 are the following: 
Atlantic Coast Line Railroad Company. 
Interlachen Gravel Company, Interlachen. 
Lake Wier Sand Company, Ocala. 
Logan Coal and Supply Company, Jacksonville. 
Tampa Sand and Shell Company, Tampa. 
A. T. Thomas Company, Ocala. 
SAND-LIME BRICK. 
Four companies were actively engaged in the manufacture of 
sand-lime brick in Florida during 1916. The total production dur- 
