COLLECTION OF INSECTS FOR STUDY. 



13 



paper, and covered with soft paper. To prevent other insects from 

 coming in and eating the specimens, a pinch of flake naphthak^ie or a 

 naphthalene cone should be placed in each box. Within the box 

 the specimens should be arranged, each kind by itself in a row. A 

 label with the name of the insect can be placed behind the row of 

 each species, or attached to the first specimen in the row. 



In recent years a new mount has been developed for exhibiting 

 insects and their life liistories and it is most excellent for use in schools. 

 It consists of a pasteboard box about one-half inch thick, the top 

 having a glass cover (fig. 13). This box is filled, not too tightly, 

 with cotton. The insect is spread out on the cotton, the top pressed 

 down and held by pins. These mounts can be purchased from dealers 



Fig. 12.— Cigar Ijox for insects. 



and are very useful for passing around in a class, or may be hung 

 as pictures on the walls of the schoolroom. The eggs, caterpillar, 

 chrysalis, and the adult, as well as a part of the plant eaten, can all 

 be put in the same mount and thus exhibit the life history of the 

 insect. To fumigate the specimens perhaps the best way is to place 

 in the box with the specimens a small tin lid or other small shallow 

 vessel and put into it about a tablespoonful of formaldehyde or of 

 carbon bisulphid. TIk^ latter substance is inflannnable and should 

 not be handled near a fire. The fumes from both these substances 

 are very annoying and disagreeable, hence it will be advisable to do 

 this fumigating out of doors, or in an outbuilding, never in the 

 schoolroom. 



