HOT 



HOT 



parceled, and white-washed ; and all the 

 wood-work within and without, painted white 

 in oil colour. 



Ranoes of narrow shelves for pots of small 

 plants nia" be erected where most convenient, 

 some behind, over the Hues, a single range near 

 the top glasses towards the back part, supported 

 either bv brackets suspended from the cross bars 

 above, or by uprights erected on the parapet 

 wall of the bark-pit. A range or two of 

 narrow ones may also be placed occasionally 

 along both ends above the flues. 



In wide Houses, where the cross-bars or 

 bearers of the sloping or top glass sashes appear 

 to want support, some neat uprights, either of 

 wood or iron, may be erected upon the bark- 

 bed willing, at convenient dista-iices, and high 

 enough lo reach the bearers above. 



On the outside behind should be erected a 

 close shed the whole length, or at least a small 

 covered shed over each fire-place, with a door 

 to shut, for the convenience of attending the 

 fires ; but the former is much the best, as it will 

 serve to defend the back of the Houses from the 

 outward air, and to stow fuel for the general use 

 of them, also for garden-tools, and all garden 

 utensils when not in use, to preserve them from 

 the weather; as well as to lay portions of 

 earth in occasionally, to have it dry, for parti- 

 cular purposes in winter and early spring. 



Somctmics Hot-houses are furnished with 

 top covers, to draw over the glass sashes occa- 

 sionally, in time of severe frosts and storms; 

 and sometimes by slight sliding shutters, fitted 

 to the width of the separate sashes ; but these 

 are inconvenient, and require considerable time 

 and trouble in their application. At other 

 times they are formed bv painted canvass, on 

 long poles or rollers, fixed lengthways along 

 the tops of the Houses, just above the upper 

 ends of the top sashes, which, by means of lines 

 and pulleys, are readily let down and rolled up. 



In the annexed plate is contained the front 

 elevation and ground plan of an improved 

 House of this sort, which has been found to 

 answer well in practice. 

 Fig. 1 . Front elevation. 

 Fig. 2. Ground plan. 

 Fig. 3. Section. 



A plan for another kind of improved Hot- 

 house has been suggested by Dr. James An- 

 derson, for which he has taken out a patent. 

 It produces its effects chiefly by the heat of the 

 sun, without the aid of flues, tan-bark, or 

 steam. This improvement extends to every 

 sort of Hol-Uouse ; and the advantages of 

 Such Hot-houses are, according to the state- 

 JBpnt of the doctor. 



1st. That " in every kind of temperature, if 

 the works are to be erected new from the founda • 

 tion, few cases can occur in which they may 

 not be so placed as that the whole heat required 

 may be obtained without occasioning the ex- 

 penditure of one shilling for fuel ; but in the 

 roost unfavourable cases that can occur, the ex- 

 penditure of fuel will iwt amount to one tenth 

 part of what is now universally employed for 

 producing similar effects." 



3d. That " in a Vinery, for example, where 

 the grapes are not meant <to be forced farther 

 than to ripen from the middle of June to the 

 end of July, as the season may be, no fuel will 

 in any case ha required, the whole effect being 

 produced by the heat of the sim alone." 



3d. That *' where the grapes are to ripen in 

 April or May, some artificial heat will be want- 

 ed ; but the quantity of fuel, even in this case, 

 will be so inconsiderable, that in a house which 

 produces, on an average of years, under ordi-_ 

 nary good management, not less than ten 

 thousand fisU-sized bunches of grapes, and fif- 

 teen hundred pots of strawberries, or other such 

 plants, the consumption of fuel will not exceed 

 half a London chaldron of coals ; and so in pro- 

 portion for those of larger extent." 



4th. That " in the Pinery and Stove the ex- 

 penditure of fuel will be diminished in a pro- 

 portionate degree ; while, at the same time, th© 

 use of bark (or of steam, as a substitute for 

 the heat of tan) will be entirely dispensed with ; 

 which, in many situations, will be the saving 

 of much expense." 



5th. That " these savings of expenditura 

 will be effected not only without any detriment 

 to the pines and other plants, but with great ad- 

 vantage to them all ; for, in consequence of 

 these improvements, those diseases which so 

 much weaken and often destroy the most valu-r 

 able plants, the damp in particular, will be en- 

 tirely reinoved, and vermin in a great measure 

 annihilated ; theplants too, in consequence of the 

 ventilation that may be at all times given them 

 at pleasure to any degree that shall be thought 

 proper (without varying the temperature from 

 that degree which may be deemed most salutary 

 to the plants, at the same time that it may be 

 changed at will from moist to dry, or the re- 

 verse), may be kept in a stale of perpetual 

 health and luxuriance that has been hitherto 

 unknown in these repositories." And, 



6th. That " all these eflects will be produced 

 by such a simple apparatus, and that so adapted 

 as to moderate of itself extremes of every sort, 

 that it will become a matter of much less nicety 

 and trouble to the gardener than at present ; as 

 he may safely be absent for a much longer time. 



