180 



BOUSSINGAULT on the migration of 



phosphates in plants 17 



BRIMSTONE. 



Air supply in burning 88 



Analysis of J62 



Cost of manufacturing H 2 SO 4 from. 104 



In sulphuric acid manufacture 86 



Moisture, Determination of, in 162 



Possible yield of H 2 SO 4 from 102 



Sulphur, Determination of, in 162 



CALCINING and drying Florida phos- 

 phates 74 



CALCINING phosphates, Fallacy of, ex- 

 posed 7S 



CANADIAN APATITES. 



Chemical composition of 35 



Companies now engaged in mining. 28 



Cost of production of 42 



Dawson, Sir William, on 35 



Geological aspects of 27 



Methods of mining 29, 34, 40. 42 



Natural impediments in the way of 



mining in Canada 42 



Necessity of a change in the meth- 

 ods of mining in Canada 44 



Occurrence of 27, 35 



Origin of 35-40 



Output of, mines from 1877 to 1890. . 43 



Principal working mines of 28 



Value of lands containing 29 



Veins of 39 



Wasteful methods of mining 42 



CANADIAN PHOSPHATES 29-42 



Equipment necessary for mining of. 34 



Mining, Extravagant method of 42 



CARBONATE of lime as an important 

 ingredient in the manufacture of 



superphosphates 112 



Estimation of, in phosphates 145 



CARBONIC ACID GAS. 



Estimation of , in phosphates 145 



Schrotter's apparatus for estimation 



of 146 



CENOZOiCtime 45 



CHALK OR LIMESTONE. 



Analysis of 163 



Determination of magnesia in 163 



CHAMBER ACID. 

 For decomposition of phosphates, 



Table of quantity of" 110 



In manufacture of phosphoric acid, 



Table of 128 



SO 3 and H 2 SO 4 in, Table showing 



value of 108 



CHEMICAL knowledge required in the 



manufacture of fertilizers Ill 



CHEMICALS, General list of those, 

 chiefly required in phosphate an- 

 alyses 178 



CINDERS from pyrites burning, Value 

 of... ...... .87 



CITRATE. 

 Insoluble P 2 O 5 , Determination of, 



in superphosphates 156 



Soluble P 2 O 5 , Determination of, in 



superphosphates 157 



Soluble phosphates ill, 112 



CLAYEY soils 11 



COMBINATION OF 



. Iron and alumina in Florida phos- 

 phates 154,155 



Raw materials used in the manu- 

 facture of superphosphate 125 



Various bodies determined in phos- 

 phate analysis 154 



COMBINED water and organic matter ' 

 in raw phosphates, Determination 

 of 144 



COMPANIES, Bogus, in Florida and 

 their evil influence 82 



COMPANIES NOW ENGAGED IN 



Canadian apatite mining 28 



Florida phosphate mining 80, 81. 82 



South Carolina phosphate mining, 55, 56 



COMPOSITION OF 

 Phosphoric acid solution of 45 B.. . 131 



Plants 13 



Principal phosphates 20 



Superphosphates as manufactured 

 in United States . 126 



CONCENTRATION of acid solutions 130 



CONDENSING plant for the fertilizer 

 factory 134-137 



CONSTRUCTION of fertilizer work.lV3, 124 



CONTRACTS, Proposed modifications 

 in present forms of making 141, 142 



CONVERSION of thermometric degrees 165 



COOSAW Mining Co., History and 

 earnings of 56-58 



COPPER. 



Determination of, in pyrites 159 



Estimation of, as subsulphocyanide 

 in pyrites ores and residues 161 



CORALLINE, as an indicator 167 



CORENWINDER, on the migration of 

 phosphates in plants 17 



COST OF PRODUCTION OF 



Canadian apatites 42 



Florida phosphates 74, 78 



High-grade superphosphates 133 



Phosphoric acid 133 



South Carolina phosphates 59, 60 



Sulphuric acid 104, 105 



COSTE, Eugene, on the origin of 

 Canadian apatites 36 



CROPS, Percentage of mineral matter 

 in the U. 3 14-16 



CRUST of the earth. Geological divis- 

 ions of the 27 



DAWSON, Sir W., on probable ori- 

 gin of Canadian apatite 35 



