182 



Index. 



FORMATION. 



Of the globe 10 



" soils 11 



FRISBEE-LUCOP phosphate mill 120-123 



FUME condenser for fertilizer works, 

 Sketch of 135-1 37 



FUMES from fertilizer works 134-137 



FURNACE, Varieties of, in pyrites 

 burning 86 



GAY-LUSSAC towers, Construction 

 and use of 94, 95 



GEOLOGICAL. 

 Canadian apatite deposits, aspects 



of 27 



Classification of tertiary rocks.. .45, 4fi 



Division of the earth's crust 27 



Florida phosphate deposits, aspects 



of 66-69 



Maps of Florida phosphate deposits 78 

 South Carolina phosphate deposits, 

 aspects of , 48 



GLASER'S method of estimating iron 

 and alumina in raw phosphates, 



152, 153 



GLOBE. Formation of the 10 



GLOVER TOWERS, Construction and 



use of 95-1 1 



Packing of 97 



GRAIN crop, Percentage of phos- 

 phoric acid in 15 



GRIFFIN phosphate mill 118-120 



GRINDING phosphates, Various me- 

 thods of 117-123 



HAY Crop. 



Percentage of mineral matter in the. 18 

 Phosphoric acid in the 16 



HIGH-GRADE SUPERPHOSPHATES. 



Arguments in favor of 127 



Chemical theory and desirability of 



manufacture of 125 



Cost of manufacturing 133 



Manufacture of 132 



Plant used in manufacture of 132 



Practical examples in the manufac- 

 ture of 123 



Tables for the manufacture of... 128, 131 



132 



HOLMES, Professor, on the discovery 

 of Charleston phosphates 43 



HYDROCHLORIC acid table . ... 176 



INDICATIONS of Florida phosphate 

 deposits, Deceptive 71 



IRON. 



Estimation of, in limestone 163 



" " phosphates 151 



" " " pyrites 161 



Titration by permanganate of . .. 171 



IRON AND ALUMINA. 

 Combination of, in Florida phos- 

 phates 154, 155 



j IRON AND ALUMINA. 



I Elimination of, from Florida phos- 

 phates 78 



Estimated by Glaser's method.. 152, 153 

 Estimation of ,m raw phosphates, 150, 151 



In Florida phosphates 76, 78 



In phosphates 21, 139 



In superphosphates 112 



Oxides of, Determination of. ... 150-153 



JEFFREY Manufacturing Company's 

 plant for mining, washing and 

 drying Florida phosphates (illus- 

 trated) 78, 79 



LAKELAND, Florida, Phosphate mines 

 in 74 



LAURENTIAN period 27 



LIEBIG'S theory of disintegrating 

 phosphates 22 



LIME. 



Estimation of, in limestone 163 



Estimation of, in raw phosphates. . . 153 

 Insoluble siliceous matter in, Deter- 

 mination of 163 



Iron in chalk or, Determination of. 163 

 Magnesia in, Determination of ... . 163 

 Mineral phosphate of, Action of sul- 

 phuric aeid on 108 



LIMESTONE, Analysis of 163 



LIMY soils 12 



LOW-GRADE phosphates, Utilization 

 of 128 



MAGNESIA. 



In limestone or chalk, Determina- 

 tion of 163 



In raw phosphates, Determination 



of. 154 



Mixture, Preparation of 170 



MANUFACTURE OF 



High-grade superphosphates 132-134 



Phosphoric acid 129-133 



Sulphuric acid 84-102 



Superphosphates 106-128 



MAP OF 



Florida phosphate deposits 78 



South Carolina phosphate deposits. 48 



MEASURES and weights of tne me- 

 trical system 165 



METHYL-ORANGE as an indicator 167 



METRICAL system, Measures and 

 weights of the 165 



MILL. 



Frisbee-Lucop 121 



Griffin phosphate 118-120 



Sturtevant, phosphate 117, 118 



MINERAL. 



Deposits of phosphates, Discovery of. 19 

 Matters in the crops of the United 



States 14-16 



Phosphates of lime, Action of sul- 

 phuric acid on 108 



