22 
APPARATUS. 
vent the escape of the captive. When fixed 
to a pole twenty or thirty feet long, Mr. Ha- 
worth considered it the best net for taking the 
Purple Emperor butterfly, (Apatura Iris) 
whose residence is generally on or near the 
tops of oaks. It will also be found useful for 
brushing grass and herbage, as, from its depth, 
flying insects cannot readily escape. If the 
hoop of the water net be considered too small, 
a piece of cane or whalebone bent to the size 
required, and tied to the stick, will be a good 
substitute. But 
3. A Sweeping Net (PI. 2, fig. 3) will be 
found best adapted to this purpose, the bag to 
be made of cheese cloth two feet long. The 
net is to be held in the right hand, and the cord 
in the left; by relaxing the cord the net in- 
stantly closes. It may be used also for catch- 
ing flying insects. 
4. The Forceps, (PI. 2, fig. 4.) are indispen- 
sable. They are held and moved like a pair of 
scissors, and are extremely useful in taking 
bees, wasps, and other insects which inhabit 
sand banks, as well as any other insect at rest. 
If an insect be on a leaf, both leaf and insect 
must be inclosed. If the insect be a butterfly, 
moth, or bee, the underside of the thorax (that 
part to which the wings and legs are attached) 
