94 
COLLECTING AND PACKING 
be well to put in a good supply of camphor 
fastened in muslin bags, and then paste or 
glue strips of linen over the openings. Sprink- 
ling the boxes, &c. in the packing cases occa- 
sionally with spirits of turpentine will be found 
useful.* 
Small flying insects may be caught in pill 
boxes and killed by the fumes of sulphur, 
or german tinder ; minute beetles may be col- 
lected in quills, and killed by immersing the 
quills in hot water. 
Grasshoppers, locusts, and caterpillars, may 
be preserved in spirits. 
The collector should beat trees, placing a 
sheet beneath ; he will by this mode get many 
rare and valuable insects. He should endea- 
vour, as far as practicable, to rear butterflies 
and moths from the caterpillars. 
He should at all possible times and places 
sweep the herbage with a bag-net, which will 
produce him myriads of insects, and though 
many of them will be small and apparently 
insignificant, yet he may be assured that they 
* Every possible precaution must be taken to preserve 
the collection from the ants, and until finally packed the 
boxes, &c. should, if possible, stand on a table, having 
the feet placed in small vessels of water. 
