22 
FLORIDA GEOLOGICAL SURVEY—I 4 TH ANNUAL REPORT 
TABLE 1 
Comparative Summary, Producing Enterprises, 1919 and 1909. 
Mining Industries. 
Per cent 
of 
Increase. 1 
1919 
1909 
Number of enterprises. . . 
36 
36 
55 
96 
Persons engaged . 
3,694 
5,761 
—35.9 
Proprietors and firm members, total ........ 
8 
9 
Number performing manual labor in or 
about the mines and quarries. 
2 
Salaried employees . 
314 
304 
3.3 
Wage earners (average number) . 
3,372 
5,448 
—38.1 
Power used (horsepower) . 
44,969 
42,366 
6.1 
Capital . 
$58,067,662 
$20,794,901 
179.2 
Principal expenses: 
Salaries .. 
666,202 
495,759 
34.4 
Wages . 
3,107,813 
2,350,854 
32.2 
Contract work . 
121,202 
217,691 
—44.3 
Supplies and materials. 
1,836,229 
738,946 
148.5 
Fuel and power. 
1,687,69 6 
1,223,035 
38.0 
Royalties and rents. 
140,815 
197,792 
—28.8 
Taxes . 
408,529 
70,493 
479.5 
Value of products* . 
8,976,413 
8,846,665 
1.5 
1 A minus sign (—) denotes decrease. Percentages are omitted where base is 
less than 100. 
*Total mineral production of Florida in 1919, according to returns collected by 
the Florida Geological Survey in co-operation with the United States Geological 
Survey, was $10,513,495. Total for 1909, according to U. S. Geological Survey was 
$9,364,171. 
TABLE 2 
Principal Industries, Producing Enterprises, Ranked by Value of Products, 1919. 
Number 
Wage Earners. 
Value of Products. 
Industry. 
of Enter¬ 
prises. 
Average 
Number. 
Per cent 
of 
Total 
Amount. 
Per cent 
of 
Total 
All industries. 
36 
3,372 
100.0 
$8,976,413 
100.0 
Phosphate rock . 
23 
2,330 
717 
69.1 
$6,678,888 
$1,779,550 
177,201 
340,774 
74.4 
Fuller’s earth. 
5 
21.3 
19.8 
Limestone . 
4 
111 
3.3 
2.0 
All other industries 1 . 
4 
214 
6.3 
3.8 
includes enterprises in industries as follows: Clay, 3; rare metals (titanium 
and zirconium), 1. 
