STATISTICS ON MINERAL PRODUCTION 29

 % "The value of the phosphate shipped from Florida in 1918, according to returns from the producers, is as follows: Land pebble, $5,565,928; hard rock, including soft phosphate, $524,178,
making a total valuation of $6,090,106. The value of shipments
during 1917 was $5,464,493. An increase of more than $600,ooo is thus indicated in total value of shipments for the year 1918 over that of 1917. The total production of phosphate rock in Florida since the beginning of the industry in i888 to the close of 1918, according to statistics collected by the Florida Geological Survey and the United States Geological Survey, is estimated to be 35,210,314 tons, with a total valuation of $129,055,787.
 "The quantity of rock mined during the year is necessarily not the same as the amount shipped, for there are variable amounts on hand and held in storage at the close. of each year. The total quantity of phosphate mined in Florida in 1918 was 1,884,891 tons. The quantity mined in 1917 was 2,328,138 tons. This decreased output of 443,247 tons in 19'8, as compared with 1917, reflects the conditions due to our entry into the war, such as difficulty in getting labor, restrictions placed on and subsequent shortage and increased cost of fuel and lack of shipping facilities."


 SUMMARY OF SHIPMENT OF PHOSPHATE IN FLORIDA FROM 1914 TO 1918, INCLUSIVE
Pebble Rock: 1914 1915 1916 1917 1918
 Exported .................................. 625,821 185,846 172,427 138,010 64.558
 Dom estic.................................... 1,203,381 1,122,635 1,296.331 1,865,981 1,932,289
 Total shipment..................... 1,829,202 1,308,481 1,468,758 2,003,991 1,396,847
Hard Rock:
 Exported.................................... 303,172 43,314 28,045 12,403 57,771
 D om estic........ ........................... 6,517 6,816. 19,042 6,205 12,612
 Total shipment .................... 309.689 50,130 47,087 *18,608 *70,383
Pebble and Hard Rock Combined:
 Exported.................................... 928 993 229,160 200,472 150,413 122.330
 Domestic...................... 1,209,898 1,129,451 1.315,373 1,872,186 1,932,288
 Totql shipment..................... 2,138,891 1,358,611 1,5'5,845 2,022,599 2,067,930
 Total shipments from beginning of mining in 1888 to 1918, inc., 35,210.278.
 *Includes soft rock phosphate.