38 THE FRUIT GARDEN. [Jan, 
in front, &c then put on the lights, and having sufficient quantity 
of fresh stable-dung, full of heat, prepared as for common dung 
hot-beds, let it be piled up close against the outside of the back and 
ends a yard wide at bottom, drawing it gradually into a foot 
width at the top of the frame, finishing it somewhat sloping, to 
throw off wet; observing, that according as the dung settles or 
sinks down, a fresh supply must be added at the top, to maintain 
the lining to the fall height of the frame. 
This lining will effectually throw in a fine growing heat, and 
soon set all the plants in motion; observing to give air in the mid- 
dle of fine days, by sliding one or more of the lights a little down; 
especially when the plants begin to push; give also moderate wa- 
tering occasionally in mild sunny weather, and cover the glasses in 
cold nights with mats. 
In three or four weeks, when the heat begins to decrease considera- 
bly, it must be renewed, either by entire fresh dung, or if new dung 
is scarce, by shaking up the old, taking the worst away, and mix the 
remainder with a due quantity of new, working the whole again in 
a pile close against the back and ends as before, which work must 
be repeated every three weeks or month, or as often as you shall 
see occasion; for the heat must be constantly preserved to a regular 
brisk temperature. 
A frame of the above construction may be appropriated entirely 
for fruit trees, planting them in a border prepared within the frame 
against the back part, and trained in the manner of wall-trees to a 
trellis, ranged five or six inches from the back erection; in which 
may be planted early dwarf-cherries, peaches, nectarines, apricots, 
grapes, figs, currants, &x. so may be worked by dung-heat against 
the back of the frame as above directed; beginning in February, 
and continuing the glasses on, as well as support the dung-heat 
until May; and there is no doubt, with good management, but that 
the different sorts of fruit may be brought to perfection early. 
But a dung-heat Forcing Frame may be constructed of more ca- 
pacious dimensions, to admit of making a substantial hot-bed of 
dung internally, both to produce an increased degree of heat, and 
wherein to plunge pots of several sorts of flowering and esculent 
plants to bring them forward in growth, being assisted also with a 
lining of hot dung applied to the exterior of the back part of the 
Frame, as explained in the foregoing: and for the internal hot-bed 
should form a bottom pit of proper width, length, and depth, making 
the bed therein a yard depth of good hot dung, covering the top 
with light dry earth, or old, or new tan-bark, six or eight 
inches thick, in which to plunge the pots of flowers, or those of 
early esculents, such as kidney-beans, peas, strawberries, sallad- 
ing, &c. 
By Bark-bed heat. — This kind of forcing frame, or rather forcing- 
house, is worked by aid of a tanner's bark hot-bed, formed in a pit 
within-side the whole length. 
This frame may be formed either of wood or brick-work, and 
fronted, 8cc. with sashes of glass like the former; the length may 
be ten, twenty, or thirty feet, or more; eight or ten wide, and six or 
eight high: and may be constructed either nearly like the dung- 
