237 
those grown in Green-Houses or Conservatories. 
These, instead of giving- the principal attraction 
to our pleasure grounds, ai-e sometimes rendered 
disagreeable and even disgusting from the sickly 
and dirty appearance the plants exhibit, in conse- 
quence of the insects feeding upon them, and of 
the excrementitious fluid they eject. 
For their Destruction. — The well 
known practice of fumigating with tobacco or 
tobacco paper, is found to be an effectual means 
of destroying them, when it is properly attended 
to, and may be performed with safety in Forc- 
ing houses, excepting at that critical period 
when the fruits are exhibiting their blos- 
som. Under such circumstances, it would be 
better to defer the operation till the splendour of 
the blossom has passed. The way in which the 
operation is to be performed, will be to choose a 
still evening, and just before the smoking is com- 
menced, a gentle steam should be raised in the 
house, by watering the flues with water, or any 
other method the gardener deems proper, as this 
W'ill be a great means of preventing the escape 
of the smoke out of the crevices of the glass, and 
will also blend with it, and greatly aid it in ad- 
hering to and destroying the insect. The moment 
the steaming is accomplished, the bellows tube 
must be charged with tobacco, leaving room for a 
few hot cinders, which must be laid upon the 
tobacco. The tube being again fixed in its socket, 
the performer, if able to bear the smoke, plays the 
