Index. 



181 



DECOMPOSITION of phosphates, Table 

 of quantity of chamber acid re- 

 quired for 110 



DECOMPOSITION of rocks 10 



DEFECTS in the raw material used in 

 superphosphate manufacture and 

 how to remedy them 113 



DEGREES Baume compared with spe- 

 cific gravity 173 



DFFOSITS. 



Of nodular and amorphous phos- 

 phates -5 



Of phosphate in America 25 



DEVELOPMENT of Florida phosphate 

 deposits 63 



DIFFICULTIES in the manufacture of 

 superphosphate 112 



DIRECTIONS for manufacturing super- 

 phosphate 123-126 



DISCOVERY OF 

 Charleston phosphates, Processor 



Holmes on 45 



Mineral deposits of phosphates 19 



Phosphate in Florida 63 



The fertilizing value of phosphates. 19 



DISINTEGRATION OF PHOSPHATES. 



In the factory 117-123 



In the soil 22 



Liebig's theory of 22 



DIVERGENCE in analysis of phos 

 phates 26 



DREDGES, Mining by means of float- 

 ing 74 



DREDGING system in South Caro- 

 lina 51,52 



DRIFT deposits in South Carolina ... 73, 75 



DRIPS, Arrangement of, in manufac- 

 ture of H 2 SO 4 92 



DRYING. 

 And calcining Florida phosphates ... 74 



Phosphates in South Carolina 53, 54 



Washing and, of phosphates 72 



EARTH'S crust, Geological divisions 

 of the 27 



EOCENE era 45 



FARMER, Relative value of phos- 

 phate to the 23 



FERTILIZER ANALYSIS, Normal solu- 

 tions useful in 167-171 



FERTILIZER INDUSTRY. 

 Molecular weights of substances 



used in 171, 172 



Per cent, composition of substances 



u*ed in 1*1, 172 



Symbols of substances used in the, 



171, 172 



FERTILIZER WORKS. 

 Amount, of fluorine in gases from . . 134 

 Fume condenser for, Sketch of . .135-137 



General outline and plan of 123, 124 



N ature of the fumes from 134 



FERTILIZER WORKS. 



Noxious fumes from 134 



FERTILIZERS. 

 Chemical knowledge required in the 



manufacture of Ill 



Manufacturer of, in Souih Caro- 

 lina, List of 60 



Production of, in South Carolina . .60, 61 

 FERTILIZING value of phosphates, Dis- 

 covery of , 19 



FLORIDA. 



Artesian wells in , 65 



Mining law in 75, 76 



Topographical aspect of 64 



FLORIDA PHOSPHATE. 



Analysis, Typical, of 77 



Boom in 63 



Calcining, Fallacy of 78 



Chemical composition of a sample 



of 108 



Companies now engaged in min- 

 ing 80-82 



Composition, Typical, of 72, 77 



Cost of production of 74-78 



Deceptive indications of deposits of. 71 



Deposits, Development of 63 



Discovery of deposits of 63 



Drying and calcining, Methods of.. . . 74 

 Exploration, Systematic, of de- 

 posits of 51 



Formation of, Theories on the 66-63 



Geological aspect of, deposits 66-69 



Iron and alumina, Elimination of, 



from 78 



Iron and alumina in., 76-78 



Lands and their inflated values 63-80 



Maps of, deposits 78 



Mining, by floating dredges 74 



Pebble mining, Methods of 73, 74 



Physical aspect of, Genera) 74, 76 



Pockety nature of deposits of 71 



Rock mining, Methods of 77, 78 



Speculative dealings in, lands 63-80 



Suggestions for working, deposits.. . . 78 



Washed and dried 72 



FLORIDA PHOSPHATE MINES. 

 Companies now working, Parti 1 



list of 80-82 



Extent and aspect of 70 



In Lakeland and neighborhood 74 



In Peace River and its tributaries. . 73 



In pebble regions 73 



Jeffrey Manufacturing Co.'s plant 



for working 78 



Negro labor in 83 



Suggestions for working 78 



Thickness of phosphate stratum in. 70-73 

 FLUORINE. 

 Amount of, in gases from fertilizer 



works 134-137 



Estimation of, in raw phosphates... 149 



