Jan.] the HOT-HOUSE. IQ3 
ing a bark-pit; it is furnished with flues as the other, and conse- 
quently produces a more dry heat; being intended principally for 
the culture of some very succulent tender exotics of parched soils 
that require to be kept always dry. Persons who have full collec- 
tions of exotics prefer this kind of stove, in order to deposit the 
most succulent kinds therein, separate from plants which perspire 
more freely, lest the damp occasioned by such perspiration, and the 
more frequent watering of these kinds, should be imbibed by the 
succulents and injure them. 
However, most of the tender succulent kinds are cultivated and 
preserved in the bark stove, placed on shelves, and in dry situations, 
with very good success. 
In this kind of stove are erected movable shelves or stands 
above one another, theatre ways, on which to place the pots of the 
various kinds of plants intended to be kept therein. 
Stoves have been constructed on various other plans, according to 
the fancy of the owners or their desire to try experiments; some 
circular, some crescent form, and others ranging north and south, 
with double roofs and upright sashes, all of glass work; but these 
not being found to answer as well as those described, it is unneces- 
sary to take further notice of them. 
For the various kinds oi forcing-frames, and their respective 
uses, see page 35. 
Pines. 
At this season the pinery hot-house requires good attendance, 
for some of the pines will now, towards the end of the month 
begin to show fruit; and your assistance is at no time more neces- 
sary than when the fruit first appears, especially in one particular, 
the supporting a proper bottom heat; for if the heat of the bark-bed 
is not kept up at that time, the young fruit will receive a check 
more than may be imagined; as, notwithstanding the air of the 
house can be sufficiently warmed by the flues, yet these plants also 
require always a moderately brisk growing heat to their roots, but 
especially when the fruit is young; and without that assistance, 
they will not advance freely in the first growth, and being checked 
therein, will be much inferior in size to what they otherwise would 
have been. 
Examine therefore carefully at this time the heat of the bark-bed 
in which the pots of pines are plunged; and if you find it very faint, 
take up all the pots, and let the bark be forked up to the bottom. 
But before you proceed to this, if the heat is found much decayed, 
or the bark considerably wasted, or become very small or earthy, 
it will be advisable to add at the same time some new tan, first 
removing away some of the wasted bark at top and sides, and then 
fill up with new bark, working the old and new well together. 
When that is done, let the pots be replunged again to their rims, in 
a regular manner. This will enliven the heat greatly; and, if done 
in proper time, the young fruit will grow freely. 
Let the fires be made very regularly every evening and morning. 
