758 



GENERAL INDEX. 



Oak tree, the foliage of, ravaged by the cater- 

 pillars of the Tortrix viridaiia, 380 ; a fine 

 cork tree (QiK^rcus Silber L.), at Woodford, 

 in Suffolk, 308 ; the effects of pruning on the 

 oak, 371 ; what is the most profitable mode 

 of treating a plantation of young oak trees, 

 whose stems are severally from 3 in. to 7 in. 

 diameter, 630; answer in, 720; a mode of 

 training the oak tree, so as to produce timber 

 shaped fitly for use in the construction of 

 ships, 557 ; criticism on this mode, 715 ; pro- 

 files of seven oak trees which grow on tlie 

 coast of Dorsetshire, and from the action of 

 the south-west wind on their heads these 

 incline to the north-east, 548,549 ; as do those 

 of oaks in the Isle of Wight and in Warwick- 

 shire, 714; the fitness of the evergreen oak 

 (QuiSrcus r\ex.) for planting near the sea 

 coast, for ornament and shelter, 543. 

 Oakbrook Cottage, notes on, 648. 

 Oat, queries and information on the grub of a 

 species of crane-fly which devours the roots 

 ofthe, 505, 506. 

 Onions, Mr. Mitchell's mode of cultivating, 75 ; 

 Mr. Whiddon's mode, 323; strictures on 

 Mr. Whiddon's mode, 626; a growing crop 

 of onions much ravaged by the grub of a 

 moth of the family A^octiladse, 573. 

 Orange tree, on the culture of the, in England, 

 67; the orange tree and citron tree flourish 

 and bear fruit at Torquay, 582 ; a mode of 

 propagating the orange tree practised in Italy, 

 291 ; M. Mertens's mode of cultivating the 

 orange ti-ee, 594; places on the Continent in 

 which tlie orange tree is cultivated, 94. 

 Orchideous plants : notes on the treatment of 

 theorchideous epiphytes in the Horticultural 

 Society's Garden, 472; notices of orchideous 

 plants recently figured in British botanical 

 books, 108. 239. 368. 488. 622. 707. 

 Organs, the simple and the compound, of 

 plants, are they evolved from the plant's 

 juices, or pre-existent in the system of the 

 plant ? discussions of the question, 186, 192, 

 283. 287. 529. 

 Ouen, St., the pai-k of, described, 134. 

 O'xalis cren^ta Jacquin.^ recommended as a 

 culinary vegetable, 78 ; a prize offered for a 

 dish of the tubers of, 232 ; tlie plant's habit of 

 growth in England, 618; floribunda Lehni. 

 is comparatively hardy, 465 ; tetraphylla or- 

 namental and esculent, 594. 

 Pseonies, a notice of certain grubs which ravage 



the tubers of, 723. 

 Paisley, the suburbs of, noticed, 13. 

 Pain's Hill, notes on, 479. 

 Paris, gardens and residences in and near, 130. 

 Park Place, notes on, 660. 

 Pea : the earliness of Bishop's early dwarf pea, 

 and of the early frame pea, compared, 688 ; 

 Groom's new variety of pea, exhibited, 731 ; 

 Peach tree and fruit : a mode of inducing a 

 late crop of peaches, 70 ; information from 

 Mr. Seymour on his mode of training the 

 peach tree, 497 ; remarks on Mr. Hayward's 

 method of training the peach tree, 242; a 

 proposition, by Mr. Hayward, to succour 

 peach trees and nectarine trees with nitre, a 

 preparation from blood, &c., 319 ; on the evil 

 effects of cropping the borders in which fruit 

 trees grow, 321 ; the characters of Burnard's 

 seedling peach, 98. 

 Pear tree, the, and its fruit. Mr. Knight's ex- 

 periments to obtain the earliest sight of the 

 fruits of seedling pear trees, 87 ; he conceives 

 that the pear tree may be propagated, with 

 superior consequences, from layers, and from 

 cuttings of the root, 88 ; remarks on Mr. 

 Green's method of training the pear tree, 242; 

 Mr. Greenshield's mode of training pear trees, 

 670 ; the results of ingrafting kinds of pear 

 tree on stocks of the 5brbus aucuparia, 595 ; 

 and vol. viii. p. 743; notice of a pear which 

 weighed 28i ounces, 98 ; facts in the econo- 

 my ofthe JCcidiura cancellcitum, and of the 

 blighting effect of its growth and increase 



on the leaves and fruit of pear trees, 328. 

 332. 



Pelargoniums, Mr. Weltje's collection of, no- 

 ticed, 474; Dennis and Co.'s, 343 -, P. habran. 

 thum, olympicum, and Lord Ravensworth, 

 described, 476 ; a mode of preserving the 

 greatest number of pelargoniums and other 

 kinds of greenhouse plants through the win- 

 ter, in the least possible space, 563 ; a mode 

 of obtaining varieties of pelargonium which 

 are prolific in flowers, 659. 



Periploca grai'ca, its flowers destroy flies, 586. 



Peter's, St, noticed, 12. 



Petunia phoenlcea D. Don, characteristics and 

 habits of, 561 ; synonymes of, 707. 



Phelp, — , Esq., the residence of, noticed, 426. 



i'hormium tenax, commercial relations of, 

 110. 



Physiology. See Vegetation. 



Pine apple, Mr. Appleby's course of practice in 

 cultivating the, 303; advantages resulting 

 from growing pine apple plants in pots made 

 with holes in their sides, 566; on cultivating 

 the pine apple out of pots, 70; Mr. Green- 

 shield's mode of cultivating the pine apple, 

 671 ; Mr. Knight cuts the pine apple while it 

 is green, 17 ; notes on the pine apples grown 

 around Paris, 130 ; notice of a liquid mixture 

 which destroys the scale on, 697. 



Pinus : a glowing eulogy on the magnificence 

 of a pine tree, 275 ; the characteristics and 

 native habits of pine trees, noted as suggesting 

 a corrector allocation of them in artificial 

 planting, 276 ; the fitness of the cluster pine 

 (Pinus Pinaster) as a nurse to plantations on 

 the sea coast, and its fitness for this purpose, 

 compared with that of the evergreen oak, 

 543 ; P. caramanica Bosc is the species, not 

 P. resinbsa Alton (P. rdbra Mx.), which exists 

 in the Hartwald in Leimerslachle, 495 ; the 

 excellencies of the P. Laricio, 469. 495 ; ex- 

 ceed those of the P. svlvestris, 469 ; the great 

 beauty of the P. Cembra noticed, and remarks 

 on other species of the genus Pinus, 475 ; the 

 names of the species of Pinus added to the 

 pinetum in Dropmore gardens, 560 ; rarer 

 species of Pinus in the grounds at Englefield 

 House; 672 ; very fine hemlock spruce in the 

 pleasure-ground at Strathfieldsaye, 674 ; re- 

 marks on the physiological habits of the 

 spruce fir, ^^bies excelsa, 661 ; facts on the 

 balm of Gilead fir, 95 ; the Tenthrfedo ery. 

 throcephala is very injurious to the species of 

 the genus Pinus, particularly to P. Strbbus, 

 599 ; Mr. Taylor on pruning the Scotch pine, 

 48 ; pines pruned at Bear Wood, 680. 



Pit, a, suited to the culture of early cucumbers, 

 71 ; Mr. Knight's melon pits, noticed, 17 ; 

 modes of managing bark beds in pits, 124. 



Plane tree, the eastern and the western, facts 

 and queries on the fitness of the soil and cli- 

 mate of Britain for the, 379. 503 ; the button- 

 wood tree of the Americans is P. occiden- 

 ta.lis L., 118; a magnificent plane tree at 

 Taplow house, noticed, 650. 



Plants : the result of Dr. Wallich's experience 

 in the preparation of plants for, and manage- 

 ment of them during, a voyage from India to 

 England, 83 ; suggestions by Dr. Lindley on 

 the cultivation of exotic plants, 438 ; wild 

 plants declare the quality of the soil in which 

 they flourish, 502 ; notes on the economical 

 plants, trees, and shrubs, observed on the 

 Rhine and in France, 89 ; see, besides, Al- 

 pine Plants, Cities, and Floricultural and bo- 

 tanical notifies of plants. 



Plum tree, the, and its fruit. Mr. Knight's 

 experiments on propagating plum trees from 

 layers and cuttings of their roots, 87 ; con- 

 siderations on sowing plum stones, 596 ; no- 

 tice of a trailing species of plum which grows 

 wild near Montreal, 124. 



Poplar, the Lombardy, strictures on the effect 

 of, in scenery, 712 ; a query on the introduc- 

 tion to Britain of the female sex of, 722. 



Potatoes : the results of propagating potatoes 



