8 
Bullctm of the Natural History Society, 
green trees without first stripping off the bark. The tops, limbs, 
and stumps left to rot by lumberers are vast nurseries of insects, 
which are sending forth ever increasing armies which, if not ar- 
rested, will in a few years destroy the young coniferous forests of 
New Brunswick. The only check to the multiplication of these 
pests is to burn all stumps, tops, brush, and injured trees each 
year, wherever man destroys the forest. 
