INDEX 



269 



Pork pickle, 245 



Porous superphosphate, 140, 174 



Potash, blast furnace, 160 



deposits, 40 



fertilizers, 160, 171, 227 



in flue dust, 61 



manure salts, 169, 170, 184, 186 



manures, soils needing, 207 



manures, use of, 15, 20, 204, 218, 

 221, 222 



starvation, 20 



substitutes, 210 



unit price, 195 



Potassic superphosphate, 184, 185 

 Potassium chloride, 160, 161, 164, 

 165 



cyanide, 250 



fertilizers, 160 



nitrate, 24 



nitrate, use of, 245 



phosphate, 27 



sulphate, 160. 161, 162, 168, 169 



sulphide, 247 

 Potato scab, 219 



spray, 241, 248 

 Potatoes, 201, 20,3, 206, 219 



acreage of, 130 



feeding value of, 236 



on peat, 211 



phosphates for, 130 



water in, 3 



Poverty Bottom, 212, 214, 222, 223 

 Powdery mildew washes, 248 

 Powell, 159 



Precipitated bone phosphate, 157 

 Premature ripening, 213 

 Pressure and superphosphates, 151, 

 J.&4 



process of creosoting, 252 



on manures, 150, 154, 180 

 Price Orders, 189 

 Prime needs of plants, 2 

 Proportion of sulphuric acid used for 



fertilizers, 133, 139 

 Protection of workmen, 112, 142, 



148, 149, 174 

 Proteins, 4, 83, 107, 176 

 Protoplasm, 80 

 Prussian blue in gas lime, 55 



in sulphate of ammonia, 87 

 Prussic acid, 86 

 Pulver blender, 179, 185 

 Punjab nitrates, 26 

 Pyrethrum, 254 

 Pyridine, 48 

 Pyrites, 45, 128, 169 



burners, 129 



furnace, 128 

 Pyrophosphoric acid, 12, 118, 153 



QUASSIA, 253 

 Quebec apatite, 28 

 Quick lime, 44 



RABBIT poison, 249 



Rachitic bones, 178 



Radford, 258 



Railway freights and fertilizers, 189, 



215 



Rape, 130, 204 

 cake, 11, 107, 109 

 dust and meal, 108, 109, 185. 



217 



phosphates for, 130 

 Rat poison, 245 

 Rate of oxidation in soil, 2 

 Reactions in mixer and den, 142, 



145 

 Recovery of nitrogen, phosphorus 



and potassium, 64 

 Red pepper, 254 

 Red Sea phosphates, 29, 156 



sulphate of ammonia, 87 

 Regrinding manures, 180, 181 

 Reid, 104 



Reinforced lead, 132 

 Rent and fertilizers, 215 

 Result of nitrogen fertilizers, 9 

 Retardation of setting in fertilizers, 



181, 182 



Retentive soils, 208, 210 

 Retrogression of superphosphate, 



154, 179 

 Retter, 31, 39 



Reverberatory furnaces, 67, 169 

 Reversion of superphosphate, 154, 



179, 187 



Ripening, acceleration or retarda- 

 tion of, 10, 13, 177 

 Roast leather, 115 

 Robertson, 31, 33, 46, 122, 125, 126, 



159, 182, 183, 187, 221, 223 

 Rock phosphate, 27, 181, 185, 193, 



218, 222 

 Rogers, 258 

 Roller mills, 38, 136 

 Rolling soil, 6 

 Roman rotations, 199 

 Root action, 5 

 crop manures, 217 

 development, 12, 16, 177 

 Rope and block tackle, 196 

 Roscoe, 60, 70, 258 

 Rosin, use of, 251 

 Ross, 46 

 Rossiter, 65 



Rotary lime kilns, 44. 47 

 Rotations, 186, 199, 215 



