FLORIDA STATE GEOLOGICAL SURVEY 
E. H. SELLARDS, State Geologist 
PRODUCTION OF PHOSPHATE ROCK IN FLORIDA 
DURING 1910. 
Summary of production and shipments for the year 1910. 
" Total production. 392,088 
Consigned for use in U. S. 18,745 
Hard rock 
Exported . ............ 461,353 
Total shipments.. .a 480,098 
r Total production . 1,637,709 
Consigned for use in U. S. 995,728 
Pebble rock < 
Exported . 606,110 
Total shipments . 1,601,838 
Total production of hard and pebble rock. 2,029,797 
Total shipments of hard and pebble rock. 2,081,936 
First issued as advance statement, March, 1911. 
