May.] the HOT-HOUSE. 4()3 
tlener; for the pots or tubs so perforated will require to be watered, 
double as often as those that are free from earth-worms. 
When pots are plunged in the earth there ought to be a piece of 
shingle, board, or slate placed immediately under the bottom of 
each to prevent the roots from working out through the holes into 
the surrounding earth; for although their rooting in this way will 
cause them to grow more vigorously, it, to many, when taken up, 
proves very injurious; therefore, to avoid this evil as much as pos- 
sible the pots should be turned around, at least once a week during 
the season, to break oft' the extending fibres that may have pushed 
through those apertures at bottom. 
The hard-wooded kinds are generally not so much injured by 
this as those of a more spongy texture, but it is ultimately of more 
injury than service to every plant, and therefore ought to be 
avoided as much as possible. 
THE HOT-HOUSE. 
FirB'heat should now be totally discontinued, except in the 
more northern parts of the eastern states, where a moderate fire at 
night, during the first week of the month, may in some seasons 
be necessary; but still continue for the pine-apples a constant 
moderate heat in the bark-bed agreeably to the intimations given 
last month, 
Pine Apples. 
The pine apple plants will now require frequent and moderate 
refreshments of water, which, during the summer season, should 
be given late in the afternoon; let this not be given in too great 
quantities at any one time, for such would not only damp the heat 
of the bark but also loosen the plants in the pots. 
As the weather increases in heat give air in proportion, both by 
the front and roof-lights; but especially when the thermometer 
rises above seventy degrees of Fahrenheit; for that is necessary in 
order to have large and good fruit. When the weather gets very 
hot the front lights must be kept open night and day, but the roof- 
lights should be closed every night, particularly in cloudy weather, 
to preserve the tan-pit from sudden rains, and ought to be opened 
again early in the morning, especially in warm weather. 
General care of all Exotics in the Hot-House. 
Continue also to give plenty of air to the plants in all the hot- 
house departments; supply them duly with proper waterings; and 
if any want shifting into larger pots let it be done now as soon as 
possible, keeping the wliole clear from decayed leaves, &:c. If 
