IIO FLORIDA GEOLOGICAL SURVEY ELEVENTH ANNUAL REPORT. 
SUMMARY STATEMENT OF MINERAL PRODUCTION IN 
DURING 1917. 
Common or building brick, fire-proofing brick and drain 
tile $ 
Lime -and limestone, including lime and ground limestone 
for agricultural use, and crushed rock for railroad bal- 
last, concrete and road material 
Mineral waters 
Phosphate rock 
Sand and gravel 
Mineral products not separately listed, including ball clay, 
fuller’s earth, pottery products, abrasive material, 
mineral dust, and sand-lime brick 
FLORIDA 
224,606 
707,182 
9,850 
5,464,493 
I 45>579 
983,124 
Total mineral production during 1917 valued at 
$7-534.834 
