INDEX 673. 



Perchloric acid, composition 585 



keeping properties 585 



method 544 



accuracy 587-593 



applicability 59 1 



application to crude potash salts 589 



general principles 578 



results 593 



influence of carbonates 590, 591 



sulfuric and phosphoric acid 587 



technique 586 



preparation, method of Caspari 580 



Krieder 582-585 



properties 585 



Phosphate, analysis of mineral 49 



breccia 35 



conglomerate 34 



determination, factors for calculation 59 



industry, control 43 



statistics 43 



lamellar 35 



rocks, loss on ignition 222 



shaly 34 



Phosphates, analytical processes 49 



availability of raw 285 



composition of Tennessee white 35 



constituents determined 49 



Dall's theory of origin 31 



drying mono-calcium 24 



Eldridge's theory of origin 29, 30, 31 



Florida, origin 26 



general conclusions 46 



magnitude of product 42 



marketed production 44 



methods of solutions 54 



occurrence in Canada '. 42 



the United States 4* 



of black 33 



mineral 25 



origin 27, 28 



Pratt's theory of origin 28 



production in the United States 43. 44 



properties 39, 40 



reactions of precipitation 58 



solution 58 



Shaler's theory of origin 31 



South Carolina deposits 41 



statistics and composition 40 



value of fine ground 5 



product 42, 43 



white, occurrence of ., 34 



world's production 45, 46 



Wyatt's theory of origin 27, 28 



Phosphatic fertilizers, availability 120 



French official classification 72 



slag, detection of adulteration 219 



estimation of total phosphoric acid 198 



22 



