T R E 



breadth one inch and five-eighths ; the top ones three-fourths 

 by one-fourth of an inch. The columns, at the parts where 

 the rails enter thera, have a flank projefting at right angles 

 to them, with a hole, through which, and through a hoje in 

 the end of the rail, a leaden rivet is put, for fattening the 

 rail to the column or poft. See Treillage. 



Tree, On'wn, in Garclentng, that fort of onion-plant which 

 rifes fomewhat in the tree-like form, r,nd which affords its 

 produce or bulbs at the tap of the ftem or ftalk. At what 

 period this valuable and ufeful bulb-rooted plant was firft in- 

 troduced into this country, feems now to be quite uncertain ; 

 and it has never yet perhaps been grown or cultivated to 

 any extent in any part, being moilly had in growth merely 

 for the fake of curiofity. From a Paper inferted in the firft 

 volume of the Memoirs of the Caledonian Horticultural 

 Society, it would appear, however, to be capable of being 

 raifed with advantage as a fubftitute, in part, for onions of 

 the keeping kind, as might have been fuppofed from the fe- 

 vere nature of the climate from which it originally came. 



In addition to the little which has been faid of the nature 

 of its culture for the purpofes of ornament and variety un- 

 der the head Allium, (which fee,) the following obfervations 

 OM its culinary ufe may be given in this place. 



It is ftated, on the experience of fome years, in the Paper 

 aUuded to above, that the root-bulbs, when two years old, 

 put up each a ftem from thirty inches to three feet in height, 

 on which good-fized bulbs are formed at top : that from 

 thefe, others pu(h out of a fecond fize ; and that fometimes 

 a third fet is produced, which are itill fmaller ; but that the 

 firft and fecond fizes are the only ones which are fit for plant- 

 ing. Towards the end of fiimmer, the top-bulbs are in 

 a proper ftate for gathering, and ftiould be coUefted and 

 carefully dried in a ftiady place, then put in a dry airy 

 fituation, until the feafon for planting them out. At 

 this time the old ftool-bulbs (hould be hfted, which 

 have moftly one or two onions to each of them, which are 

 of good quality, and keep well until late in the following 

 fpring feafon. 



About the laft week in the month of April is the moft 

 proper time for planting out the young top-bulbs for the 

 purpofe of a crop, as if fooner planted, they are apt to 

 pu(V that feafon, and neither produce good root-bulbs nor 

 top-bulbs. The old roots fhould be planted out any 

 time in the month of February, or the following one, as 

 early planting has the power of making them produce good 

 bulbs at top. The young bulbs of the firft fize fliould 

 be feparated and planted out in rows in any good garden 

 groun-d, which is in an open fituation, fix inches by four : 

 the fecond fize in rows fix inches by three, in fliallow drills 

 of very little depth, as the fwelling and ripening of the 

 roots are fpoiled when they are deep. 



The whole of thefe will, it is faid, produce onions of a 

 good fize, which will keep, when well taken care of, until 

 the middle of May. The old ftool-bulbs, when not all 

 wanted for planting, will hkewife keep equally well ; and 

 after a fufiicient ftock of them has been provided, the reft 

 may be ufed with the other principal forts. 



It is noticed that the old roots are the beft for replanting 

 for a crop of top-bulbs, as they are the moft certain of 

 running to ftems. 



The writer has never known thefe crops to be infcfted 

 with vermin in any ftage of their growth ; the reafon of 

 which is, it is thought, their quick growth and coming to 

 maturity before the feafon at which vermin commonly attack 

 the ufual fpring-fown roots, as it has been found that the 

 Jate or autumn-fown crops of the common kind, when 



T R E 



allowed to ftand for an over-year produce, are feldom or 

 ever aff'efted in this way, even on light dry ground. 



This fort of onion, befides its property of long keeping, 

 is a ftrong well-flavoured kind, equal, if not fuperior, to 

 moft of the common forts. 



It is, however, perhaps the bett calculated for private 

 gardens, as requiring a good deal of attention, as in fuch, 

 when once provided with a certain quantity of ftool-bulbs, 

 the proprietors would be rendered independent of the failure 

 of the crops of common onions ; and it is confidently aflerted, 

 that if the cultivation of it Were generally well underftood, it 

 would be capable of being grown with both pleafure and 

 profit in a great many cafes. 



Tree, Celandine. See Bocconia. 



Tree, Cori. See Cork and Oak. 



Tree, Chajle. See Agnus Cajlus. 



Tree of Life, Arbor vitiz, in Botany. See TnujA. 



The occidental, which grows naturally in Canada and 

 other northern countries, is ufed, according to profeflbr 

 Kalm, for many medicinal purpofes. It is much extolled 

 for rheumatic pains ; with this intention the frefti leaves 

 are pounded in a mortar, and mixed with hog's greafe, 

 or any other greafe ; this is boiled together, till it becomes 

 a falve, which is fpread on linen, and applied to the part 

 where the pain is. This falve gives certain relief in a (hort 

 time. 



Againft violent pains which move up and down in the 

 thighs, and fometimes fpread all over the body, they recom- 

 mend four-fifths of the leaves of polypody { polypoditim fronde 

 pinnata, &c. ) and one-fifth of the cones of the thuja, reduced 

 feparatelyto a coarfe powder, and afterwards mixed. Witli 

 this powder, and milk-warm water, they make a poultice, 

 which they fpread on linen, and wrap round the body ; but 

 they commonly lay a cloth between it and the body, otlier- 

 wife it would burn and fcorch the flcin. 



The decoftion of thuja leaves is ufed as a remedy for the 

 cough ; and they ufe this at Saratoga for the intermitting 

 fever. 



TK'EE-Frog. See Ranunculus Viridis. 



Tree, Germander. See Teucrium. 



Tree, Mallow. See Lavatera. 



Tree, Mealy, or White-leaf. See Wayfaring-TV^^. 



"TREE-Mofs, a fpecies of Lichen ; which fee. 



Tree, Primrofe. See Oenothera. 



TREE-Loufe. See Aphis. 



Tree, Diana's, in Chemiftry. See Arbor. 



Tree, Dormant. See Dormant. 



'Tree-FoU, in Sheep-farming, a term applied to that fort 

 of ftieep-fold which is formed or furrounded by trees in the 

 growing ftate, and which is well fuited for protecting them 

 in certain expofed fituations, as well as affordmg them other 

 advantages. See Sheep. 



Trees, in a Ship, are of feveral forts, as chefs-trees, crofs- 

 trees, roof -trees, luafie-trees, treffel-trees. See CHESS-/rf«, 

 &c. 



Tree Ifland, in Geography, a fmall ifland in the Indian fea, 

 near the coaft of Africa. N. lat. 17° 10'. — Alfo, a fmall 

 idand in the Eaft Indian fea, near the E. coaft of Sumatra. 

 S. lat. 3° 50'. E.long. io5°5l'. — Alfo, a fmall ifland near 

 the W. coaft of Sumatra. S. lat. 1° 58'. E- long. 100° 

 15'. — Alfo, an ifland in the bay of Bengal, near the coaft 

 of Ava. N. lat. 18° 12'. E. long. 94° 15'. 



TREE-A-TOP IsLAND.oneoftheChufan iflands, which 



undoubtedly defcrved the appellation given to it, when it 



was firft defcribed by the Europeans above half a'century 



ago, at which time they were permitted to trade to Chufnn ; 



Z 2 but 



