222 AGRICULTURE ON THE PACIFIC SLOPE { 



one and keeping the other until the name is received. A very\ 

 good way to kill the insects is to make pin holes in each pill | 

 box and then place them all in a fruit jar, drop in a little 

 gasoline, and then close the jar tightly and leave it overnight. 



A bulletin on butterflies may be obtained for ten cents 

 from the Superintendent of Agricultural University Exten- 

 sion, University of California, Berkeley, Cal. 



Directions for collecting and preserving insects are given j 

 in Hodge's " Nature Study and Life," Chapter 4. In place off 

 the poison there mentioned, it is safer to use gasoline for 

 killing the insects. 



4 4 



1* ' -\> 



FIG. 129. Lamp-chimney breeding cages placed over plants growing in 

 pots. The top may be covered with cloth or strips of glass. 



Breeding cages. A large tumbler will serve most pur- 

 poses. It may be turned upside down or placed upright 

 with a piece of cloth tied over the top. A lamp chimney 

 may also be used in this way, or a wooden box may be cov- 

 ered with cloth or mosquito netting. Holes may, be made 



