51 
quality in the weight and bulk of these sub- 
stances will occasion the gauze to open when 
thrown from the hand: a thin piece of twine, 
a yard or two long, may be tied to the remain- 
ing corner, by which the net may be drawn 
in at pleasure. . The art of spreading it to its 
full extent may be acquired with very little 
practice. 
HAVING caught the insects, the next thing 
is to preserve them. Moths, butterflies, Jo- 
custs, and others of this class, may be killed 
by nipping them across the thorax. Wasps, 
bees, hornets, &c. when secured, may be 
treated in the same way, guarding the hand 
with a Handkerchief; or they may be squeez- 
ed with a pair of forceps: but if the Collector 
be not careful in performing this operation, he 
will in all probability have cause to regret his 
want of caution. Or they may be killed by 
putting them into a glass immersed half way in 
