296 



INSECT LIFE. 



man pins now advertised for sale in this country, 

 with a list of the sizes of each. Fig. 259 represents 



Klager pins :- 



Klager : oo, o, /, 2, [ j], 4, 5, 6, 7, 8, 9, 10. 



Length, if inch. 



(Karlsbad) Carlesbader : o, i, 2, 3, 4, [5], 



6, 7, <?, 9, 10. Length, i^ inch. 



Schliiter: oo, o, I, 2, [j], 4, 5, <5, 7, 8, 9. 



Length, i-| inch. 



The numbers printed in italics indicate 



in each case the sizes that will be found 



most generally useful. If only a single 



size is purchased, select that in brackets. 



A convenient way of storing insect pins 

 is in a block of the form shown in Fig. 260. The 

 holes in the block are about three fourths as deep as 

 the pins are long, so that the heads of the pins pro- 

 ject from them. Several holes are made in the block 

 in order that each size of pin can be kept separate. 



If for any reason it is impracticable for the pupil 

 to procure insect pins, ordinary pins, or the smaller 

 sizes of the black pins, commonly called mourning 

 pins, can be used. As a rule, 

 the mourning pins have bet- 

 ter points than the common 

 brass pins, and are to be pre- 

 ferred on this account, espe- 

 cially when cork or pith is 

 not used in the insect cases. 

 If possible, however, insect pins should be used. 

 Ordinary pins are made of too large wire for pinning 

 insects, and specimens pinned with such pins are 

 rarely suitable for a permanent collection, although 



FIG. 260. Block for pins. 



