65 



great measure, to hasten the death of those in- 

 sects that it is necessary to pierce. We would 

 also recommend that small pieces of sponge or 

 cotton be secured in different parts of the box, 

 and saturated with spirits of turpentine, the ef^ 

 fluvia of which tends to destroy life. 



9. PINS. The pins used either for Crustacea 

 or insects must be adapted to the size of the 

 animal : the Entomologist should, therefore, have 

 at least four different sizes ; the largest, used for 

 Crustacea, should be about four inches long, and 

 thick in- proportion ; the other three sizes should 

 be gradually finer, and about an inch and a half 

 in length. Needles should never be used., as 

 they soon rust, and the insects are liable to se- 

 rious injury. 



10. PILL BOXES. The lightest, for the con- 

 venience of carriage, are those made of paper, 

 and should be of four different sizes, so that 

 they will nest or pack one within the other: as 

 the tops and bottoms arc seldom sufficiently se- 

 cured, and in the event of either getting loose 

 it is frequently a source of vexation to the Col- 

 lector in the loss probably of a valuable insect, 

 it is best to strengthen them by glueing paper 

 at the top and bottom. If a particularly rare 

 insect should be captured, and secured in a pill 



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