JAN.] THE HOT-HOUSE. 91 



wind, to hang and make fast a tarpawling in front of the upright-sashes, 

 it will be of great service, for then much less fire, will preserve a 

 due heat in the house ; and the necessity of too much fire-heat, 

 ought to be avoided by every possible means. 



The above kind of stove is calculated not only as a pinery for 

 the culture of the pine-apple, but for all sorts of tender exotics of 

 similar quality ; some requiring to be plunged in the bark -bed, 

 others placed on top of the flues and shelves, and others nearer the 

 glasses ; the same stove serving to force fruits, flowers, Sec. as before 

 observed. 



Such stoves as are intended principally for pine-apples, and for 

 forcing flowers, strawberries, and some sorts of culinary esculents, 

 &c. may be only ten or twelve feet high behind, which generally 

 answers better for such than those of more lofty dimensions ; or by 

 raising the bark-pit within wholly above the surface, and sinking 

 the front walk about a foot, the roof may be lower, and such plants 

 by that means, be brought nearer to the glass, which proves ex- 

 tremely advantageous to their growth. 



When stoves are erected for cultivating and bringing to the 

 greatest possible perfection the taller kinds of exotics, they are 

 made from sixteen to twenty, or even to twenty-five feet high in 

 the back wall, with width in proportion, by only six feet height in 

 the front glasses, in order to suit low as well as high plants ; and 

 with the roof sloping quite from the top of the back wall to the 

 front, and wholly of glass-work, having a capacious bark-pit within, 

 formed towards the front; behind which is sometimes a pit of 

 earth, either on a level with the bark-pit or with the back walk, to 

 receive particular plants ; in rear of this is a walk, between which 

 and the back wall is formed a border of good earth, to receive the 

 tallest-growing plants which are intended to be cultivated. In this 

 kind of stove you may cultivate exotics, &c. from the lowest to 

 almost the highest stature, by placing those of the shortest growth 

 forward, the tallest behind, and so on according to their several 

 gradations of height. 



However, these very lofty and capacious stoves are not recom- 

 mended for general use, they being both very expensive in erect- 

 ing, and in the consumption of a great quantity of fuel ; and not so 

 well calculated for the growth of the general run of exotics, as 

 stoves of a moderate height. 



Flues ought not to be erected along the back walls, in such stoves 

 as have plants trained thereto or growing immediately close to 

 them ; and one range round the front and ends will not be sufficient 

 to keep up a due warmth in such large houses in severe weather, 

 without consuming an immense quantity of fuel, and at times rais- 

 ing a scorching heat in the parts of the house next to this single 

 range, by overheating it in order to force through it a heat suffi- 

 cient to keep the entire of the house warm ; this can never protect 

 and promote the growth and health of plants so well as that gradual 

 glow of moderate warmth issuing from flues of several returns, 

 carried under the walks, or other convenient places, as well a* 

 round the front and end walls, either in double or single ranges, and 



