INSTRUCTIONS FOR 
Collecting -bottle. — This is a bottle specially made 
for entomologists. It is compressed, so that it may 
be carried conveniently in the pocket. It has a 
glass tube or large quill passed through the cork, 
fitted with a plug. It is very useful for collecting 
small Coleoptera, etc. A piece of crumpled muslin 
should be placed in it for the insects to cling to. 
The cork should be covered with sealing-wax on the 
inside to prevent insects burrowing into it. 
COLLECTING-BOTTI.E. 
Trowel and Digger. — One or both of these are necessary 
for digging in the ground, for ripping off bark of trees, 
etc. A narrow fern-trowel answers best. 
y Forceps. — Entomological forceps are made with curved 
I points for taking hold of pins : straight, fine pointed forceps 
m for setting are very necessary ; they should have very little 
jf spring, and are best made of brass. 
FORCEPS. 
Q um , — For gumming small insects on card some entomologists 
use gum-tragacanth, as it is less conspicuous ; but it has the 
great disadvantage of being very difficult to wash off. Gum-arabic, 
with a very small quantity of powdered loaf-sugar and one or 
two drops of glycerine, is perhaps the best mixture. If pure 
gum-arabic is used, the insects are liable to spring off. The 
sugar and glycerine prevent this ; but the latter must be used 
very sparingly, as it has a tendency to attract moisture, which 
is one of the entomologist's greatest foes. 
(jard. — A hard white card or two-sheet Bristol board should be used. 
Bound Punch. — This should have a diameter of about f inch for 
