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much care; because if the beautiful colours of the butterflies 
are spoiled, they are of no value. 
The are to be pinned through the thorax and put in corked 
boxes like the Orthoptera and Hemiptera. 
If you have no pins or cork, you can send them enclosed 
in pieces of paper (1), the wings bended one on the other 
and each specimen separately. 
When you have two or three hundred specimens, you 
must pack them in a wooden box in good order, pour some 
benzine in it, and paste paper all over the box. 
The Hymenoptera and Diptera must be pinned in the 
same way through the thorax and exposed to the sun (or to 
the heat of a fine (2) a few minutes) ; they must absolutely 
be pinned and sent in corked boxes ; because in the bottles, 
their wings would be damaged. 
Insects are to be found everywhere, under stones, moss, 
bark of decayed trees, in detritus (3) of all sorts, in mush- 
rooms, flowers, wripe frints, in water, in dung, in soil, in 
(1) These pieces of paper should be folded in the form ofa triangle 
and ofa size according to the Insect. 
(2) This exposition near the fine is for hilling them. 
(3) Detritus or all matter in decomposition. 
