Nov.] THE HOT-HOUSE. 575 
keeeping 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 opportuni- 
ties, 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 
the plants should have as much light as possible, and air whenever 
it can be given with safety: decayed leaves must constantly be 
picked off" and taken out of the frame, but watering will seldom be 
necessary at this season, as the steam arising from the bed will 
occasion a moist atmosphere about the plants. Observe that the 
more succulent kinds will not keep as well in such a place as in a 
dry stove, or on shelves in the hot-house. 
The garden pits erected with brick and furnished with flues, in 
which you have tender exotic plants, must also have a lining of 
hot dung placed around them to their full height, in order to prevent 
the frost from penetrating in through the wall; moderate fires must 
be made in the flues every evening, and in severe weather to keep 
up the internal heat when that of the pit is found not to be suffi- 
ciently strong: the glasses must be well covered with mats, &c. 
every night, and even by day when the weather is cloudy and the 
frost very severe. 
