>.\MOUELLE S 



heat or fumigation as may destroy the larvae ; or to 

 cover over with a mixture of tar and train oil in 

 March, to a certain height from the ground, all such 

 tries as it may be thought proper to save." 



We have some doubt it this insect ever attacks the 

 elm but when in a dead state. We have often col- 

 lected insects in the neighbourhood of Cambervvell, 

 when the grove existed, and could never find this 

 species of insect but in one tree, and that was a dead 

 one on the summit of the hill ; but after the trees 

 were killed by the escape of the gas from the pipes, 

 that were badly laid, the trees threw off the bark, 

 which was blistered by the poison, to a distance 

 sometimes of an inch from the tree — such was the 

 appearance in the month of February; the trees how- 

 ever came into leaf, but were evidently in a very weak 

 and sickly state, but at this time not a single speci- 

 men of Scohjtus could be found, but the next spring 

 a great many of the trees were infested by them, and 

 it was by our advice that the trees were cut down in 

 order to preserve the timber. 



