178 FLORIDA GEOLOGICAL SURVEY-THIRD ANNUAL REPORT. water is reported to rise to within three feet of the surface of the ground. An analysis of the water f rom this well made in the office of the State Chemist showed it to contain 140 parts total solids to Iooo,ooo parts water. The total solids are reported to be composed of calcium carbonate (lime), sodium chloride (common salt), and magnesium sulphate (Epsom salts). The following is an analysis of the water of the Benson Mineral Spring, located about one-f ourth mile west of town and. owned by the Misses Emma and Tina Tucker. Analysis made at Vanderbilt University, Nashville, Tennessee, by W. H. Hollenshead. Constituents. Parts per million. Potassium ........................................... 27-104 Sodium ............................................ 1805.o46 Magnesium ......................................... 213.047 Calc ium............................................. 321.619 Iron................................................. .702 Chlorine ............................................ 3389.640' Bromine ............................................ I03.20b Carbon dioxide....................................* ** ** ** * *559.234 Sulphuric acide (radical)............................0 541-132 Silica ........ ............. ...................... .... 16.989 Phosphoric acid (radical)............................... .702 Boric acid...................................... Heavy Trace Organic matter................................ Small Amount Hydrogen sulphide............................... Slight Trace The above are probably combined in the water as follows: Constituents Parts per million. Potassium sulphate.................................... 60-346 Calcium sulphate.................................... 720-043 Sodium bromide ..................................... 133-722 Magnesium chloride.................................. 819-787 Sodium phosphate......................................-994 Iron chloride ......................................... 1-594 Sodium chloride ..................................... 4504.371I Calcium chloride ..................................... 76.701 Calcium bicarbonate................ ...... ............. 330.92, 8 Silica ............................................... 16.989 Carbonic acid ........................................ 379.634 Sodium biborate............................. I.... Heavy Trace Hydrogen sulphide ..... ......................... Slight Trace Organic matter................................ Small Amount