

PRESERVING BOTTLES 



31 



Mounting on Pith and Cardboard Points. Small moths and 

 also other small insects are sometimes mounted on pith by the 

 use of tiny wire, the pith being first fastened to an insect pin at 

 proper height (Fig. 43). Again, a small beetle or fly, or other 



Fio. 44. Microscopic insect 

 mounted on cardboard point. 



FIG. 45. A punch for making points. 



FIG. 47. 



FIG. 46. 



insect, may be mounted by being gummed to a cardboard point, 

 as shown in figure 44. These points are made with a triangle 

 punch illustrated in figure 45. 



Pinning forceps are desirable accessories 

 in order to hold the pin upright, and to 

 keep it from bending when it is being forced 

 into the cork bottom of the collection box. 

 Figures 46 and 47 represent these forceps, 

 the first used with lighter pins, and the 

 latter where large butterflies, etc., are being 

 placed in position in the collection. A 

 cheap pair of pliers will answer fairly well 

 if one does not care to go to the expense 

 of the regulation forceps. 



Very delicate insects, such as plant 

 lice, minute flies, etc., which have first 

 been in 90 per cent alcohol, are frequently 

 mounted on glass slides, with appropriate 

 labels (Fig. 48) for identification and study 

 with the microscope. 



Magnifying Glass. In studying and FlG - 46 '-^ e c ? a s . for pinning 

 handling small insects a watchmaker's glass FlQ - 47t ~^ c e e a ^ y P inning 

 (Fig. 49) is sometimes quite useful. This 



lies in the fact that it can be held in one eye, leaving the hands 

 free. A pocket lens (Fig. 50) of some kind is very desirable. 



Preserving Bottles. Figure 51 illustrates a home-made rack 

 for holding vials, containing alcoholic specimens to be studied. 



