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for the destruction of insects and signed by initials or a nom de plume ; 
these articles often work more harm than good, since the knowledge 
of the habits there given are based more upon conjectures and con¬ 
clusions than actual knowledge. 
Therefore, before remedies are applied, the owner of the infested 
trees ought to be sure they are founded upon reason and knowledge of 
the various stages of the insect’s life. Such it is the desire of each 
economic Entomologist to ascertain, and although they can provide 
remedies for the destruction of insect pests, it lies wholly with the 
person suffering from the ravages whether the insect shall be exter¬ 
minated or not. * 
* I suggested some time ago the use of Babcock’s fire extinguisher as a means of destroying this 
pest. I understand siuce the above was written that Miss Smith has tested it and finds it quite 
successful.— [C. Thomas. 
