care to sink deeply the pins to avoid their detachement in 
voyage. 
These boxes will the put to the sun for a few day, and 
when you see that the Insectes are dry, you will pour a 
small quantity of benzine (1) in the box and paste bands of 
paper all around. 
If you have no pins, or corked boxes, send them in the 
same bottles in which the have been collected. If so, the 
bottles should be filled up completely with alcoholic saw 
dust, and some paper pasted round; then, by this means, if 
the bottles break during the voyage, the Insects will be 
preserved. 
The Lepidoptera, Neuroptera, Hymenoptera and Diptera 
are collected with the butterfly net. 
The specimens collected must be mery perfect. The way 
of hilling the Lepidoptera and Neuroptera is to press their 
thorax between the thumb finger ; this must be done with 
(1) The benzine is to be employed for every object of natural 
history which can be devoured by Insects. 
All boxes containing Insects, Bird Skins, Crustaceous, etc., must 
be preserved by pouring benzine into them before shutting and 
pasted with bands of paper. 
