14 HOW TO DESTROY INSECTS. 



room not in use ; cover the plant and saucer of tobacco 

 with a cone made of newspaper, and smoke for fifteen 

 or twenty minutes or less it depends on the insects 

 and the size of the plant. If any of the aphis are found 

 lying on the earth of the pot, they should be removed 

 and destroyed, or they will recover and return to their 

 former haunts. 



Fumigating. 



The following device, BO far as the production of 

 smoke is concerned, is very satisfactory. 



A common tin box, such as dry mustard is sold in, is 

 taken to the tinman, who cuts a hole about half an 

 inch across in the bottom, and solders on a tapering 

 tnbe something like the nozzle of an oil-can. In the 

 cover of the box he cuts another hole, and solders on a 

 tube flaring slightly outward, of a size to fit over the 

 nozzle of a pair of bellows. 



TLe whole machine looks like one of the affairs which 

 dealors in magic cockroach-powders sell for the purpose 

 01 mowing the powder into cracks and crannies. The 

 box is filled with tobacco, and a live coal inserted just 

 under the cover. The tube is then placed on the bel- 

 lows and the latter put in operation. The result will 

 be a smoke such as no respectable insect will endure 

 for a moment. , 



Frame of Glazed Cloth. It is quite practicable to 

 emoke plants, both in doors and out, by using a light 



