98 THE HOT-HOUSE. [Jan. 
to break the glasses; but by using the small glass before recom- 
mended, the use of coverings, except upon very extraordinary 
occasions, may be totally obviated. Indeed it would be advisable 
in very severe frost, especially when accompanied with a piercing 
wind, to hang and make fast a tarpaulin in front of the upright 
sashesj it will be a great service, for then much less fire will pre- 
serve 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, &c., 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 wall 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 sufiicient 
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 
