BAR 



BAR 



immediately about tlitir roots; and at the same 

 time the advantage of a warm vapour tor heating 

 the internal air, assisted by tiie-hcat .n the Hues 

 in the winter season, but which in sii. inner and 

 autumn is surticient alone; jjroduemu', from the 

 b^iiinning of spring till October, an etVectiial 

 tenipei-aiure of internal heat, for the preserva- 

 tion and growlli of almost all such tender 

 exotic plants as are natives of different parts of 

 the hot regions of South America, As^a, and 

 Al'rica. 



ll.ji-houses or stoves of the cnnnnon width 

 have in giMK-ral oniy one pit extending length- 

 ways ol liiem, as described above ; but if they 

 are oi'considera'.iL exitiU in length, the pits are 

 »c>a)eli:iie3 divided m the middle, or at otiier 

 parts, bv iiiierveiting passages, to render them 

 mote convenient in perfor;nmg the necessary 

 cuhnre of the plants. Some h -t-hous-s jf very 

 great wid'h have likewise two bark-jjits ranging 

 parallel lengthwavs \\\u\ a passage extending be- 

 tween them, which renders them more commo- 

 dious in ixivms the re(]uisile culture to the p ants 

 that are plimffed in the beds, than if the whole 

 vas in one extremely w ide pit, in which it would 

 often be verv niconvement to come at the plants 

 placed towards the middle ; and by having an 

 intervening passaiie, give a larger scope, and 

 afford a l)ettcr current of air for the grow th of 

 the plants in the beds, as well as admit of 

 viewing tliem to much greater advantage and 

 effect. 



Detached or external bark-pits are such erec- 

 tions as are formed separate and distinct from 

 hot-houses or stoves, but in some manner fon- 

 nocted with them, being employed for similar 

 uses, as well as for various other purposes where 

 occasional artilicial heat is wanted. They are 

 made, as has been ju*t observed, four, five, or 

 six feel wide, having such lengths as may be 

 required, formed bv surrounding walls of brick- 

 work, three or four feet in height in the fronts, 

 by four, five, or six behind, where someiimes 

 flues for winter tire heat are erected in the upper 

 pans, the whole being coped and covered at top 

 with moveable glass frames sloping southward'* 

 to the full sun, and in which a bark-bed being 

 made to the whole width, length, and depth, 

 becomes an useful appendage to the stove, 

 greatly assisting in the culture of various tender 

 txotics of that repository, especially in the way 

 of nursery-pits for raising and preserving thcni 

 to some advanced slate of growth ; also occa- 

 sionally in the propagation and protection of the 

 more tender kinds of green-house plants, or anv 

 particular curious or tender plant of the full 

 ground, as being alwavs ready, and prepared 

 with a contiiiuing growing heat, in which to 



plunge the pots, whcii; artificial heat is re- 

 quired, or essentially necessary in raising ^ueh 

 tMider plants more etrectiially and ex|>ediiiiiu»lv- 

 These kinds of bark-pits also prove exetedinglv 

 useful in raisini; many sorts of tender exoiicj 

 from seeds, suckers, cuttings, slips, &c., anil in 

 retaining and forwarding them in their growth 

 for some lime. fJark-pits of ;his kind are likewise, 

 as has been seen, particularly useful and nccessaiy 

 in the culture of voiiiig pine-apple plants; for 

 rearing and nursing them till oi a proper age and 

 size to be placed in the succes-ion-house, truit- 

 ing-stove, or ))iiierv. .Similar kinds ot detaclied 

 bark-pits are likewise occasion.dlv used wiili ad- 

 van'age in i)l;miiiig, tr.iiisplanling, and shifting 

 tender or curious plants in pots ; lor i)lungmg 

 the pots which contain them in as soon as re- 

 plaiucd, which much expedites their taking tresh 

 root, and brings then; up at lirst into a tree and 

 viiiorous growTh. Rark-pits ot the same kind 

 are also successfullv employed in torcing and 

 raising early productions, such as melons, kid- 

 nev-beaiis, peas, strawberries, ^:c. ; and for 

 many sorts of flowers, both of the bulbous- 

 raoted and herbaceous kinds, as well as for small 

 flowering shrubs. And if the dimension of them 

 be surticrently increased, especiallv in height in 

 the back parts, they may be made use of for 

 several sorts of dw arf fruit-trees in pots, in order 

 to the production of early fruit. Detached bark- 

 pits should always be erected in warm dry situ- 

 ations, in a southerly aspect, and be constantly 

 ranged lengthways in the direction of east and 

 west, or nearly so, in order to have the whole 

 fronts incline full V to the south sun, in a sloping 

 manner, on which to place the glasses in the 

 ?ame position, being placed either contiguous to 

 the hot-houses or stoves, but at a proper di- 

 stance in front of them, as the situation or con- 

 venience of ihe place may admit, or at one or 

 both ends, extending in a line with them, but 

 separated bv a passage between tliem. But de- 

 tached bark-pits are sonulimes formed with 

 ridged tops, like the roofs of houses, the glasses 

 slopint: to both sides, being ranged Ungihways 

 north and sou'h, in order to have the benefit of 

 the sun equally on both sides, and used for the 

 same purposes as the others ; tliough the coni- 

 ntK.n south- fronting pit- are more generally em- 

 ployed, as being less expensive in glass, and in 

 coitimon more convenient for purposes ot the 

 foreine kind. They should be constructed, as 

 has been observed, with brick walls, on the sides 

 aiui ends nine inches thick ; and where fire- flues 

 are intended, the bock walls should be of a 

 proper thickness from the bottom, to admit of 

 having them in the upper parts, a lire-place 

 being contrived externally at the bottom at on« 



