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muft obfervc, that when the two ovens are joined to- 

 gether, there Ihould be a partition Wall at lealt three 

 bricks'thick between them, otherwife the fires will 

 foon deftroy it ; and if there fliould be the lead hole 

 in the Wall, through which the fmoke of the two fires 

 can coaimuaicate, it v/ill prevent their drawing. 

 The lower Hue, through which the Imoke firft pafics 

 from the fire, may be two feet and a half deep : there- 

 fore the back Wall (hould be at leaft two bricks and a 

 half thick, as hiah as to the top of this flue ; and then 

 it may be fet oifto two bricks, whicTi muft be conti- 

 nued to the top of the 'Wall. The fecond flue, whicl- 

 fhould return over the firtl, may be made two feet, the 

 third a foot and a half, and the fourth one foot deep 

 which four Hues, with their coverings, will rife near 

 ei^ht feet in height ; fo that there will be about two 

 feet left for fixing of the frames at the top to fupport 

 the glafles, and for the coping of the Wall 

 four returns will be fufficient to warm the air in the 

 frames, for the fmoke will have loft its heat by the 

 time it has pafled thus far. 



*" ■- JO L 



flrong iron hooks 



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l)e contrived in fach a manner, as that the upper row 

 may (lide down ; and by making on one fide three 

 fmall holes in the wood-work which fupports the 

 frames, at about a foot dillance, and having a fmall 

 iron pin to fix into them, the top glaffcs niay be let 

 down one, two, or three feet, according as there may 

 be occafioii to admit air. The lower row of glaffes 

 may be contrived fo as to take eafily out ; but as they 

 mufl; lie Hoping, and the upper row maift bear on 

 them, they cannot be contrived to fiide upwards ; nor 

 indeed will there be any occafion for their moving, 

 becaufe it is much better to let the air in at the top, 

 than in the front of the trees. 



The floping timbers which are to fupport the glafs 

 frames, muft be faftened at bottom into the ground- 

 plate in the front of the border, and at the top into 

 ftrong iron cramps fixed in the upper part of the Wall 

 for that purpofe. Thefe timbers fhould be made of 

 Fir, which will not twiff, as Oak and fome other wood 

 will, where it is laid in fuch pofition. They muft be 

 made fubftantial, otherwife they will not laft many 

 years, efpeciallly as they are defigned to be movea- 

 ble. On the top of thefe (hould be fixed a ftrong 

 board, under which the upper row of glaflfes fliould 

 Aide. The ufe of this board is, to fecure the upper 

 Thefe hooks ftiould be long enough 1 part of the glaflt;s from being raifed by the winds, 



^ * ' " and alfo to keep the wet from getting to the trees ; 



therefore it ftiould be joined as dole as poflible to 

 the Wall, and fliould projed about two inches over 

 the glafs frames, which will be enough to throw the 

 wet on the glaflfes, and likewife to fecure them faft 

 down. 



Walls, there fliould be Ion 



faftened at convenient diftances 

 V nhnnr two inches from the Wall 



to which the trellis muft be faftened which is to fup- 



port the trees. 



to faften into the back Wall, for the Wall 

 being but four inches thick, will not be ftrong enough 



trellis ; but in placing of them care 



to fupport the , . ^ 



fliould be taken not to lay them crofs the middle of 

 the flues, becaufe they would obftruft the clearing 

 the flues of foot whenever there fliould be occafion 

 fo that the beft way is to lay them juft under the tiles 

 which cover each flue, at about three or four feet afun- 

 der, which will be near enough, provided the hooks are 

 made fufficiently ftrong. As the flues muft be well 



'I* -. 



The breadth of thefe frames for the glafles may be 

 about three feet or a little more, according as the di- 

 vifions of the kngth of the Wall will admit •, for a 

 fmall matter in their width is of no confequence, 



k ■ 



..parp-etered wfth loam on their infide, fo likewife (hould provided they are not too wide to be eafily moved j 



the loam be fpread under the tiles which Cover them, [for when they are wider than a- man can eafily reach 



to the thicknefs of the hooks, that the flues may be " '*•"" *"*" ^^ """' *-"'-'-<'—'• ^- 



Wy fmooth, otherwife the foot will hang to the iron , ^ , , r irt u . 



-; -hooks, and ftop the fmoke from paffing. It will be frames, which are to fupport the glafs,; ffiould be 



"• ' ^ - ' ' • " ' ' ' placed lengthwife of the frames ; for when they are 



hi^armsto manage, they will be very troublefome to 

 carry from one place to another. The bars of thefe 



trellis with Hop-bags, or fome fuch coarfe cloth, in 

 the manner' as hath been dire(5ted for the flqves, 

 which will make them fo tight that no Imoke will find 





its way into the frame, which^withoufthis covering, 



u Jo ^Tf-rxr onr tn Hn throuorh the loints of Walls, efoec 



afly when they are fo thin as thefe muft be built ; and they are in bloflbm. 



mbiflrure 'which is lodged 

 ^^ on the infide of the glafles, and caufe it to fall in drops 

 -oh 'the borders at every bar, which will be very inju- 

 *^' nous to any plants which are put there •, and if it falls 

 on the trees will greatly damage them, efpecially when 



The lead into which the dafles 



»* ■ *,*'-*V 



_■ » 



this covering will alfo ftrengthen the wall of the flues, 

 and join the whole work together. If at each end of 

 thefe flues there are fmall arches turned in the back 



ed w deartTe¥ue7o7fJot"whe^ever there is a necef- | At each end of the range of glafles, there wjU be 

 ,fity for it, the trouble will be much lefs than to open 

 th£ 



of thefe frames axe fixed, fliould be very broad, and 



the joints well cemented, otherwife the wet will find 



' an eafy paflTage through, ^ and do great damage to the 



fruit. . . 



in front. 



Walls 



make 



^ 



clivity for the floping glaflfes ; .and, in thefe borders 

 there mav be a row of Dwarf Peas planted to conr" 



eith'er of 



*^ -9- 



early, or a row of dwarf Kianey-beans, 

 which will fucceed very well ; and if they are not 

 planted too near the trees, will not do them "much 

 -injury. On the outfide of thefe borders fliould be low 

 Wallsereded, which fliould rife four orfix ii 

 the level of the borders, upon which the plate of tim- 

 ber fliould be laid, on which the floping glaflTes are to 



' reft ; and this Wall will keep up the earth of 

 der, and alfo preferve the wood from rotting. 

 The glaflTes which are defigned to cover thefe Walls 

 muft be divided into two ranges, for as they muft 

 reach from the ground-plate (juft above the level of 

 the border) to almoft the top of the Wall, they will 

 be more than twelve feet long, which will be too 

 great a length for Angle frames, which, when they 

 are much" more'than fix feet long, arc too heavy to 

 move, efpecially if the frahies are made of a proper 



., ftrenpth to fuftain' the 'gTafsV Thefe frames fliould 



f -' 



'an angular fpace between the glalles and the Wall, 



which muft be clofely flopped to prevent the air from 



t^thT trees7^ be in the leaft fnjured I getting in, which might greatly injure the fruit. Thefe 



by this which they muft be, when they are opened ■ are by fome perfons clofely boarded up ; but if they 

 ^ ' arc clofed with glafles, fo contrived as to open to let in 



air at proper times, it wiU be of great advantage ; be- 

 caufe when the wind may be ftrong againft the front- 

 glafl!es, one or both of thefe end-glaflTes may be open- 

 ed, according to the w'arrflth of the air inclofed, 

 which will be ofteii very ufeful to cool the air, and to 

 admit a fmall quantity of frefti air to the fruit. ^ 

 The forts of fruit which are ufually planted for 

 forcing, are Cherries,- Plums, Peaches," Apricots, 

 and Ne£larines, but the laft-mentioned rarely fuc- 

 ceed well, nor will the trees continue long, fo that 

 they are fcarce worth planting againft hot Walls. As 

 for the Vines, I would propofe they fliould be planted 

 by themfelves againft a particular Wall ; for as they 

 will require more air to be admitted to them when 

 they begin to ftioot, than any of the above-mentioned 

 fruits, they will not all fucceed if they are included 

 in the fame frame. - As to the others, they will do 

 very well in the fame border, and will demand the 

 fame temperature of warmth. The beft of thefe forts 



Walls 



^^ 



tioned : 



1- 



-j 



« * - 



. 1 



— * ! 



.. !, 



%:^-^ 



• ' 



Cherries. 



p k 



