Nor.] THE HOT-HOUSE. 573 
in the course of the last and preceding month, as then directed; but 
should it happen by any disappointment, that this could not have 
been effected, it ought on no account to be omitted in the first week 
of this month. 
As the cold weather advances, the fires in the stove should be in- 
creased proportionably, being careful not to overheat the air, lest 
thereby the plants shoot too freely, which would be a serious injury to 
them at this season, by rendering thern more tender, and conse- 
quently less able to endure the vicissitudes of the ensuing winter; 
besides, the most forward of the pine-plants might start to fruit, 
which would ruin all your expectations; nor should the air be kept 
too cold, that is, the spirits in the thermometer of Fahrenheit, suf- 
fered to get lower night or day than 52 or 54 degrees, lest the pines 
become stunted, and many of the curious exotics lose their leaves, 
and perhaps their extreme parts decay, for want of that degree of 
heat so necessary and so congenial to their constitutions. 
Give water occasionally to such plants as want it, in moderate 
proportions, and not too much at a time, for they cannot now dis- 
charge it so freely as in summer; observing that it stands at least 
twenty-four hours in the stove before you use it, to acquire the same 
degree of heat as the air of the house. 
Fresh air must be admitted into the house every mild and warm 
day, while the weather continues open, but especially when the ther- 
mometer is above sixty-two or three degrees; you must be attentive 
however, to close the house immediately on any sudden unfavourable 
change of weather, and always sufficiently early in the afternoon to 
retain a considerable warmth in the house during the night, which 
will sometimes in the early part of the month, supercede the neces- 
sity of fire, or at least of but very little. 
The art of managing tender exotic plants, consists principally in 
keeping the air of the stove or Hot-House, in a proper and regular 
temperature of heat, in duly proportioning the quantity of water to 
the different natures and necessities of the various kinds of plants, in 
judiciously admitting a sufficiency of air at suitable opportunities, 
and in keeping the bark-pits in a proper state of fermentation; all 
which must be duly attended to, or the desired success cannot be 
expected. 
Pick off constantly all the decayed leaves from the plants, and 
throw them out of the house; clean their leaves and stems from filth, 
which many kinds are subject to contract; wash off and destroy all 
insects which infest any of them, frequently stir the surface earth in 
the pots, to keep it from contracting moss, &c. and keep all the house 
clean, sweet, and in neat order. 
Care of Young Succession Pines, and other Plants. 
The young pines or other plants in succession houses must have 
the same care as above; and those in bark beds under garden- 
frames are to be diligently attended to; the outside lining must be 
kept to the full height of the frame all around, and in a regular and 
constant state of warmth; the glasses must be carefully and suffi- 
ciently covered every night, and by day in a very severe frost, but 
