664 INDEX 



Caliche, composition 296, 297 



California, niter deposits 295, 296 



Canada ashes 529, 530 



Carbon dioxid, determination in mineral phosphates 225 



estimation in ash 616, 618 



disulfid 648 



estimation in ash 610, 613, 618 



Carbon-free ash, determination 617 



Carbonates, reactions in superphosphate manufacture 279 



Carnallit 486, 487, 491, 493 



composition 494 



description 497 



method of analysis 550 



Caustic lime, estimation in basic slags 219 



soda and potash, discussion of methods of analysis 643 



Cave deposits 606 



Charcoal, adulteration 'of basic slags 221 



Chili saltpeter, adulteration 299 



analysis by difference 424 



application 300 



commercial forms 299 



direct and indirect methods of analysis 437 



quantities applied 301 



Chlorid, influence on Hooker's method 460 



Chlorin, determination 620 



in ash 616 



plants 621 



Chlor-platinic acid, preparation by electrolysis 575, 576 



Cholin 289 



Chromium in phosphates 274 



Citrate and molybdate methods 102, 103 



Citrate-insoluble phosphoric acid, official method 61 



volumetric method 160 



Citrate method, general principles 88, 89, 90 



ignition of the precipitate 97 



manipulation '. 95 



of Halle agricultural experiment station 91, 92, 93, 94 



official Swedish 98 



shaking apparatus 96 



small phosphoric acid content 105 



solutions employed 95 



temperature conditions HI 



precipitate, purity 104 



Citrate-soluble phosphoric acid 100, 101 



direct precipitation 106, 107 



official method 62 



Citric acid, influence of strength on digestion 217 



on precipitation of phosphoric acid 65 



Columbia niter deposits 295 



Combustion furnace 329 



Composition of potash salts, calculation 553 



Composts 594 



Copper, determination in copper carbonate 649 



oxid, determination 631, 632 



nitrogen determination 323 



Copper-zinc couple 449 



