4Q THE FRUIT GARDEN. [Jan. 



forking it over to the bottom, which will revive the decaying heat 

 six or eight weeks longer. 



A bark-heat forcing-frame, nearly of the above dimensions, might 

 be contrived entirely for forcing fruit-trees, having a border within- 

 side along the back wall three or four feet wide; there plant young 

 bearing dwarf fruit-trees, of any sorts before mentioned, at six or 

 eight feet distance, in the manner of wall or espalier trees, training 

 them also in the same manner as directed for the respective sorts 

 in their natural state of growth. The bark-pit should here be 

 almost half sunk; and in the beginning of February till the pit 

 with new tan-bark, which will soon set the trees into bloom, and 

 will ripen their fruit early. 



But the most eligible general forcing-frame for various sorts of 

 plants, is one of the above mentioned construction, having also Hues 

 for fire-heat; the walls must be of brick-work, having two or three 

 returns of flues formed of the same materials, running the whole 

 leno-th of the back wall within, and one or two along the front and 

 ends, by which to convey tire-heat occasionally in severe frosts, cold 

 nights, and in all very cold and intemperate weather, which will 

 be a great improvement in very early forcing, so that this kind of 

 frame will be nearly of the plan of a stove or hot-house. 



In default, however, of any of the above kinds of bark-heat 

 forcin°--frames, one might be effected by a common bark-pit, made 

 in any dry sheltered situation, with a brick wall, to any convenient 

 size, and covered with glass-lights. This pit is to be principally 

 above ground and filled with good fresh tan to the depth of four 

 feet, in which you may plunge pots of roses, or any other shrubs, 

 any sort of low herbaceous flowering plants, fibrous, or bulbous 

 rooted; kidney-beans, strawberries, &c; observing, however, that 

 in severe frost, the wall of this pit must be protected by hot-dung, 

 leaves, or straw, in order to prevent the frost penetrating into the 

 bed, and it must be carefully covered with mats at night, and even 

 in the day time in very severe weather. 



By Fire-heat. — This kind of forcing-frame is worked by actual 

 fire, burned in a furnace behind, at one end or middle, from thence 

 communicating the heat by internal flues or funnels, running the 

 whole length of the back wall in three returns, one above another, 

 and continued in a flue round the front, and the frame thus con- 

 structed is often employed for ripening several of the more valu- 

 able fruit-trees at an early season, or for forwarding such to 

 perfection which do not ripen freely without artificial aid. 



This frame, or forcing-house, must be formed of brick-work, at 

 least the back or main wall, for the convenience of having fire and 

 flues, and the whole front, &c. must be glass, like the other sorts; 

 the length may be from twenty to forty feet or more, though one 

 fire will not warm more than that length; the width may be from 

 five or six to twelve or fifteen feet, and height eight or ten. It may 

 be contrived either of moderate width for one row of trees only, to 

 ran°-e against the back wall, or may be capacious enough to have 

 a range of trained wall-trees behind, as just mentioned, and some 

 smalfhalf standards, ranging also from the back to the front. 



