INDEX 



263 



Pine, ashes of, 151 

 Pines, manures for, 222 

 Pisticia, ashes of, 153 

 Pisticia, manures for, 222 

 Plane tree, ashes of, 154 

 Plant circulation, 17 

 Plant physiology, 8 — 18 

 Plant respiration, 16, 18 

 Platanus, ashes of, 154 

 Platanus, manures for, 222 

 Plum trees, ashes of, 80, 81 

 Plum trees, soils for, 27 

 Plum trees, manures for, 195 

 Poplar, ashes of, 155 

 Poplars, manures for, 222 

 Potash, chloride of, 238 

 Properties of manures, 227 — 249 

 Punioa, ashes of, 82 

 Punicas, manures for, 222 



Quince tbbes, ashes of, 83 



Baphiolkpsis, ashes of, 158 

 Raspberries, manures for, 196 

 Raspberry -bushes, ashes of, 84 

 Red-flowering currant, ashes of, 



156 

 Red maple, ashes of, 156 

 Respiration, plant, 16, 18 

 Rhamnus, eishes of, 157 

 Rhamnus, manures for, 222 

 Rhododendron, ashes of, 159 

 Rhododendrons, manures for, 222 

 Rhus, ashes of, 160 

 Rhus, manures for, 223 

 Ribes, manures for, 222 

 Root-absorption, 10 

 Rose, ashes of, 160 

 Rose oil, 161 



Rosetrees, manures for, 223 

 RnscuB, ashes of, 162 



Salix, ashes of, 163 

 Salix, manures for, 224 

 Soiadopitys, ashes of, 163 

 Sequoia, ashes of, 164 

 Shepherdia, ashes of, 165 

 Silica, 240 

 Sloe, ashes of, 85 

 Sodium sulphate, 240 

 SoUs, 20, 21 

 for apple trees, 27 



Soils for cherry trees, 23 



currant bushes, 23 



fig trees, 28 



filbert trees, 28 



gooseberry bushes, 28 



humus, matter of, 37 



mineral matter of, 36 



mulberry trees, 28 



oxidation of, 32 



perfect, 21 



the bacteria of, 34 



the chemistry and bacteriology 

 of, 19-44 



various, 24, 25 



various barren, 47 



walnut, 28 

 Southernwood, ashes of, 165 

 Southernwood, manures for, 224 

 Special manures, 246 

 Spiraea, ashes of, 166 

 Spirseas, manures for, 224 

 Stephanotis, ashes of, 167 

 Stephanotis, manures for, 225 

 Sterile soils, 45 — 50 

 St. John's Wort, ashes of. 111 

 Strawberry tree, ashes of, 167 

 Symbiosis, 33 



Symphoricarpus, ashes of, 168 

 Symphoricarpus, manures for, 



225 

 Syringa, ashes of, 168 

 Syringas, manures for, 225 



Tamakix, ashes of, 169 

 Tamarix, manures for, 225 

 Taxodium, ashes of, 170 

 Taxus, ashes of, 171 

 Taxus, manures for, 225 

 Theory, Davy's, 3 



De Saussure's, 3 



Digby's, 2 



Bundonald's, 3 



Eiuhof and Thaef s, 4 



Liebig's, 5 



TuU's, 3 



Van Helmont's, 2 

 Thomas phosphate, 232 

 Thuja, ashes of, 171 

 Thuja, manures for, 225 

 Thuyopis, ashes of, 172 

 Transpiration, 16 

 Tree of the Gods, ashes of, 172 



