uses of a chemical substance, it would not come within the mean-
ing of item 104. To get the benefit of that exemption a sub-
stance must have been prepared for that purpose, and the main
use of it must be for that purpose. I, therefore, entirely concur
in the definition stated by my learned brother the Chief Justice
in his judgment. Such being the definition of an insecticide
under item 104, we must apply it to the substance in question.
It is a mixture of drugs spread upon paper. It is necessary
for the effective use of those drugs that they should be spread
upon paper or some like substance. The drugs and the paper
constitute the insecticide. The preparation so composed kills
insects in some way, whether by poisoning or by imprisoning
and strangling them is not known. It appears to me to be quite
immaterial how it operates, if the general effect of the combina-
tion is that it destroys insects. Mr. Blacket admits that if the
combination destroyed insects by poisoning them it would be an
insecticide within the meaning of item 104, but he argues that
there is implied in that item a limitation beyond those that I
have mentioned, that is, that the drug or chemical must kill by
poisoning, as distinct from mechanical means. I entirely fail to
see any ground upon which a distinction can be drawn between
killing insects by poison and killing them by mechanical means.
If Mr. Blacket could establish that distinction he would, of
course, have gone a long way towards maintaining his argument.
But I see no reason why the ordinary meaning of the word
"insecticide" should be restricted as Mr. Blacket contends.
Therefore it appears to me that this substance spread upon
paper, being a combination of drugs and chemicals, prepared
specially for the purpose of killing insects, is an insecticide
within the meaning of item 104. ° The article, therefore, being
under that item, is free, the duty was not properly charged, and
it follows that the plaintiffs are entitled to recover the amount
claimed in the action.