186 



Index. 



SUPERPHOSPHATES . 

 Desirability of high-grade, manufac- 

 ture 126 



Determination of citrate insoluble 



P 2 O 5 in 156 



Determination of citrate soluble 



P 2 O 6 in 157 



Determination of total F 2 O 6 m.... 157 

 Determination of water soluble 



P 2 O 5 in 155, 156 



Difficulties in the manufacture of.. 112 



Drying, Methods of 113 



Equations involved in manufactur- 

 ing 1C9 



Examples of scientific and accurate 



methods of manufacturing... 114, 115 

 High-grade, Arguments in favor of. 127 

 " " Cost of Manufacturing. 133 

 " Manufacture of.... 126, 132 

 " " Plant used in manufac- 

 ture of 132 



" " Practical examples in 



the manufacture of . 229 

 Tables for the manufac- 

 ture of 128, 131, 132 



Iron and alumina in 112 



Manufacture of 106-128 



" Calculations em- 

 ployed in 110, 111 



" Difficulties in 112 



" ." Directions for... 123-126 

 " Equations involved 



fn 109 



" . " Examples of scien- 

 tific 114, 115 



" high-grade 132-134 



" Plant required in, 



123, 124 

 Merchantable, Methods of making, 



dry and 113 



Mixers used in the production of... 124 

 Mixture of the raw materials in the 



manufacture of 123-125 



Moisture in, Determination of 155 



Output of, in South Carolina 60, 61 



Phosphates, mono-calcic, and di- 

 calcic, Production of, in the manu- 

 facture of .. Ill 



Phosphoric acid set free in the man- 



factureof Ill 



Phosphoric anhydride in, Determi- 

 nation of 155-157 



Plant required in manufacture of, 



123, 124 

 Raw Material, Combination of, 



used in the manufacture of 125 



Raw Material, Defects in the, 

 used in the manufacture of, and 



how to remedy them 113 



Raw Material, Mixture of, used in 

 the manufacture of . . . . . .123-125 



I SUPERPHOSPHATES. 

 i Raw Material, Qualities of, in man- 

 ufacturing in 



Sampling, Method of 155 



Table showing the quantity of 

 chamber acid of any strength re- 

 quired to decompose any phos- 

 phate of known composition 110 



Water and citrate soluble 112 



SYMBOLS of substances used in the 



fertilizer industry 171, 172 



TABLES. 



For preparing sulphuric acid of 

 various strengths by adding water 174 



For systematic analysis of alkalies 

 and acids 173 



Of atomic weights 164 



Showing amount of chamber acid of 

 various strengths required in the 

 manufacture of phosphoric acid 

 from natural phosphates in rela- 

 i lion to the production of high- 

 grade "supers" 128 



1 Showing annual production of Ca- 

 nadian apatite 43 



Showing annual production of South 

 Carolina phosphate 54 



Showing quantities of phosphoric 

 acid required in the manufacture 

 of high-grade superphosphates 

 from mineral phosphates 131 



Showing quantity of chamber acid 

 of various strengths required to 

 decompose any phosphates of 

 known composition 110 



Showing strengths of various solu- 

 tions of ammonia 175 



Showing strengths of various solu- 

 tions of barium chloride 175 



Showing strengths of various solu- 

 tions of hydrochloric acid 176 



Showing strengths of various solu- 

 tions of nitric acid 176 



Showing strengths of various solu- 

 tions of phosphoric acid 174 



Showing the value of chambsr acid 

 in SO 3 and H 2 SO 4 , according to 



Baume 108 



TERTIARY. 



Age, Characteristics of 45 



" Subdivision of 45 



Rocks, Geological ciassificaion of. 15, 46 



Strata, Workable phosphate de- 

 posits of 46 



THERMOMETRIC degrees, Conversion 



of 165 



TILLMAN, Governor, on the Coosaw 



Mining Co 56 58 



TOPOGRAPHICAL aspect of Florida ... 64 

 TRIBASIC phosphoric acid, Chemical 



composition of 107 



