INDEX. 



ACID CHAMBERS. 

 Arrangement of drips, windows and 



caps in 92 



Construction of 93 



Dimensions of 90 



Exit gases from 94 



General hints in management of. .93, 94 



Pressure of steam in 90 



Reactions of gases in 93 



Regulation of nitre supply in 93 



Sprengel pump in 90 



Thickness of lead for, and amount of 



space in 90 



ACID PHOSPHATE OF LIME. 



Composition of 107 



Production of, in the manufacture 



of superphosphate Ill 



ACID siphon or " egg," Description 



of 98, 99 



ACID solution, Concentration of 130 



ACIDS and alkalies. Table for syste- 

 matic analysis of 173 



AGRICULTURAL products, Value of, in 



U.S 14 



AGRICULTURE, Theory of scientific 9 

 AIR SUPPLY. 



Importance of regulating, in sul- 

 phuric acid manufacture 89 



Regulation of, in pyrite burners 88 



" for burning brim- 

 stone 88 



ALKALIES and acids, Table for system- 

 atic analysis of 173 



ALUMINA AND IRON. 

 Combination of, in Florida phos- 

 phates 154, 155 



Determination of oxides of 150-153 



Elimination of, from Florida phos- 

 phates 78 



Estimation of, in raw phosphates. 150, 151 

 Glaser's method of estimating... 152, 153 



In Florida phosphates 76, 78 



AMMONIA. 



Citrate solution of 170 



Hydrate solution (normal) of 168 



Nitrate solution of 170 



Oxalatc solution of 170 



Table showing strength of various 



solutions of 175 



ANALYSIS. 



Determinations necessary in 144 



Divergence in, of phosphates. 26, 139, 140 



Of alkalies and acids, Table for 173 



" brimstone 162 



" chalk or limestone 163 



" fertilizers, Normal solutions use- 

 ful in... ...167-171 



ANALYSIS. 



Of Florida phosphates 77 



' phosphates, Volumetric 157-158 



' pyrites ores 159-161 



' raw phosphates 138, 144, 154 



' soils 13 



' sulphuric acid 163 



' superphosphates . . 155-157 



Preparation of sample for phos- 

 phate 144 



Selected methods of ..... 138 



Volumetric, of phosphates 157, 158 



APATITES. 

 Average cost delivered at Montreal 42 



" of mining 40, 41 



Canadian, see CANADIAN APATITES. 



Chemical composition of 35 



Combination of various bodies de- 

 termined in phosphate If 4 



Continuity of veins of 39 



Coste, Eugene, on the origin of 



Canadian 36 



Dawson, Sir William, on Canadian. 35 



Geological aspect of Canadian 27 



In rocks of Laurentian period 27 



Methods of mining, in Canada..34, 40, 42 

 Mines, Principal working of, in 



Canada 28 



O utput of, from 1877 to 1890 43 



Probable origin of Canadian 35, 37, 38, 39 

 Ratio of, to other rocks in Canadian 



mines 40 



Selling price of, in 1890 43 



Selwyn, A. R. C., on the origin of 



Canadian 36 



Transportation of ... 42 



Values, Yearly, of 43 



APPARATUS, List of chemical and 

 other, chiefly required in " phos- 

 phate mining" and " fertilizer fac- 

 tory " laboratories 177 



ARCH.EAN rocks, Composition of 27 



ARTESIAN wells in Florida 65 



ARTIFICIAL heat, Evil effects of, when 



used to dry superphosphates 113 



ASSIMILABILITY of phosphates 18-22 



ATOMIC weights, Table of 164 



BARIUM CHLORIDE. 



Standard solution of 169 



Table showing strength oc various 



solutions of 175 



BARTOW as a phosphate-producing re- 

 gion 74 



BAUME degrees compared with speci- 

 fic gravity 173 



BOOM in Florida phosphates 61 



