APPENDIX 103 



may be made with a flower pot and lantern globe, as 

 shown in Figure 8. Fill the pot with earth and sink a 

 bottle in the earth up to its neck, in the center of the pot, 

 to hold water-soaked sand in which to place the stems of 

 the food plants. Tie mosquito netting over the mouth of 

 the globe. 



FIG. 9. Battery jar aquarium. 



" A good home-made cage can be built by fitting a pane 

 of glass into one side of an empty soap box. A board 3 

 or 4 inches wide should be fastened below the glass so as 

 to admit of a layer of soil being placed in the lower part of 

 the cage, and the glass can be made to slide, and thus serve 

 as a door. The glass should fit closely when shut to pre- 

 vent the escape of insects." 



" Many larvae when full grown enter the ground to pass 

 the pupal state ; on this account a layer of loose soil should 

 be kept in the bottom of a breeding cage. This soil should 



