510 



INDEX. 



PAGE 



Petunia, phoenicea 467 



— violaeea 467 et seq. 



— vittata 471 



Petunias, from, cuttings 447 



Phaseolusinamoenus 131 



— lunatus 131 



— multiflorus 130 



— nanus 129 



— vulgaris 129 



Phenology 288 



Philistine against Jew 39 



Phillippi, on tomato 127 



Philosophy, the old 162 



Phlox Drummondii 467, 468 



Phosphate of ammonia 262 



— potash 262 



— soda 262 



Phrenism 492 



Phryma Leptostachya 270, 273 



Phylloxera 190, 313, 426 



Phytomer 72 



Phyton 84, 101 



Physiological constant 288 



— unit 296 



Picotees 438 et seq. 



Pigeon-grass 2o9 



Pigweed 196, 259, 261 



Pineapple 99 



Pines by cuttings 85 



Pink (see Carnation). 



Pinus ponderosa 326 



Pinus sylvestris 327 



Pistachio, nativity of 277 



Plains and prairie floras 318 



Plane-tree, evolution of 97 



Plant-breeding, mystery of .... 161 

 " Plant-Breeding," quoted . 21, 153, 396 

 "Plantes Potageres," mentioned .127 



Plant-lice 188 



" Plant World," quoted 51 



Plum 137 



— acclimatization 333 



— American vs. European, . . . .317 



— borer in 184 



— Cooper 152 



— Green Gage 145, 176 



— impotent 352 



— Japanese 211, 275, 314, 427 



PAGB 



Plum, Knight's varieties 158 



— knot 188, 426 



— nativity of 276 



— progress in 208 



— running out 385 



— synonyms in 243 



— Wild Goose 374 



Plums, battle of 418 



— native 210, .361 



— and latitude 299 



— insects and diseases 183,426 



— quality in ... . 221, 224, 226, 232 



Plur-annuals 45, 295 



Plowshares and pruning-hooks . . 215 



Poisons, origin of 62 



Poiteau, quoted 142 



Pollen, office of 334 et seq. 



Pomegranate, nativity of 277 



Pomological alliance 267 



Poplar, Lombardy 297 



Populus alba 297, 331 



— dilatata 327 



Potamogetons 100, 252 



Potash, fertilizing with 262 



— phosphate of 262 



— ratio to sugar 234 



— sulphate of 262 



Potato beetle . . 180, 184, 185, 187, 188 



— Cooper on 153 



— duration of 45 



— Knight's work 158 



— latitude and 297 



— mixing in the hill 90 



— running out 380 



— seed-bearing in 252, 3.11 



— variation of 28 



Potatoes, rotting 181 



Powell, E. P., quoted 22 



Prairie and plains floras 318 



Predaeeans 214 



Preserving, progress in 215 



"Press, Phila.," quoted 326 



Prickles, origin of 26, 62 



Prince, quoted 407 



Progress in horticulture 202 



Promising varieties, why fail . . . 364 

 Propagation and longevity 343 



— of nursery trees 249 



