30 
APPARATUS. 
put in another, the first would either escape or 
get crushed. Small moths and flies at rest on 
pales, walls, trunks of trees, &c. are easily 
captured by means of a pill box — holding the 
bottom in the left hand, and the top in the 
right, and by bringing them close together shut 
the insect therein. It is best to put the empty 
boxes in one side pocket, and the filled ones in 
another. Before going out the collector should 
see that his box lids fit tight, and that the tops 
and bottoms are perfectly secure. 
18. Pins. The size of the pin must be 
adapted to that of the insect. The collector 
should never fail to take out a cushion filled 
with pins of various sizes. Bent pins (PI. 3, 
fig. 10) are very useful in setting the legs of 
insects. Needles must never be used for piercing 
insects, as they always rust. 
19. Pocket Lens (PI. 3, fig. 11). The best 
kind is that which contains three glasses in one 
case, the focal distances of which are half an 
inch, one inch, and two inches; these three 
glasses will, simple and combined, give seven 
distinct powers. But a Coddington or Stan- 
hope Lens is indispensable for minute insects. 
20. A Stand (PI. 3, fig. 12), having a cork 
let into the top and covered with paper, is 
useful in examining insects. 
