18 FLORIDA GEOLOGICAL SURVY-I5TH ANNUAL REPORT

 PHOSPLIATL
 The year 1920 is the record year for the phosphate industry both in the quantity produced and in value. Following- that year came one of depression which was due largely to the E uropean situation and possibly to some extent also to the large output during 1920. The total shipment of phosphate during 1921 was 1,780,028 long tons with a total valuation of $10,431,642. This is 1,589,356 long tons less than the output for 1920 and a decrease in value of $9,032,720, or a reduction of about 45 per cent in output and of about 46 per cent in value.
 The year 1922 is marked by an increase in production of both the hard rock and pebble rock varieties and with only a very small output of soft phosphate. In value, however', there was a decided reduction. The total shipments of phosphate from Florida for 1922 were 2,058,593 long tons valued at $8,347,522. This is an increase of 278,565 long tons or about 14 per cent in production hut a decrease in total value of $2,084,120 or about 19 per cent.
 The following table gives the production and value of the four varieties of phosphate rock produced in Florida for the years 1900 to 1922, inclusive. Since the beginning of phosphate mining in 1888 to the close of 1922, Florida has produced 44,078,519 long tons with a total valuation of $175,097,242. These figures are in accordance with 3tatistics collected by the United States Geological Survey and the Florida Geological Survey.
 The chart on page 20, prepared by Dr. R. M. Harper, graphically illustrates the production of phosphate in Florida from the beginning of mining in 1888 to 1922. There is also indicated the causes of marked decline in the production for certain years such as for instance, the freeze of 1895, the panic of 1907, the W'orld W'ar, 1914 to 1918, the strike in the Florida pebble phosphate fields, 1919, and the depressed rEuropean conditions following the World War, 1921 and 1922.