INDEX 663 



Barnyard manures, sampling 15 



Barometer, correction 332, 333, 334 



reading 332 



Basic phosphatic slags 190 



slag, amorphous 195 



availability 191 



citric acid extract 205 



composition 195 



crystalline 195 



Dutch method for phosphoric acid 200 



history of manufacture 192 



manufacture in the United States 192, 193 



mixture with other fertilizers 192 



neutralization of basicity 200 



official methods 216 



preparation of citric acid extract 206 



process of manufacture 193 



superior -qualities 190 



quantities manufactured in various countries 193 



used 190 



treatment of citric acid extract 206 



uses 190 



utility in various crops and soils 192 



Wrampelmeyer's method for detecting adulteration 221 



slags, Bottcher's modification for determining phosphoric acid 215 



conditions of accurate analysis 204 



German agricultural experiment station method 203, 209 



loss on ignition 222 



preparation of citric acid extract for analysis 205 



rich in silicic acid, official German method 209 



Bat guanos 606 



Beet molasses, composition 534 



Benzaldehyde 651 



Bergkieserit 500 



method of analysis 550 



Betiiin 289 



Black alkali 602 



phosphates, occurrence 33 



Blue phosphate, occurrence 41 



Bone meal, value of denitrogenized 47 



Bordeaux mixture 649 



Breccia phosphate 35 



Brucine, detection of nitric acid 323 



Brussels congress, method for phosphoric acid 99, 100 



Biihring, citrate method 91, 92, 93, 94 



Bureau of Soils method of stating results of analysis 624 



C 



Calcined manurial salts, analysis 558 



Calcium cyanamid, manufacture 311 



properties 307, 311 



uses 312 



determination 619 



oxid determination 637 



salts, effect on the determination of alumina 257 



