Any difficulty that arises is due to the fact that the word "excise" has not, in British legislation, any fixed, invariable meaning apart from the legislation itself. The British Parliament, being free from constitutional limitations such as ours, can call any impost an excise duty; and for purposes of administrative machinery, it has seen fit to limit the term in a manner which it thinks suitable to the particular Act. But our Constitution treats the term as if it had a definite, fixed, invariable meaning. What we have to do is to find the meaning in the Constitution. "Excise" is not a technical term in the law; and the popular meaning is not rigid. Looking at the Standard Dictionary, "excise" is defined as "a charge levied upon commodities of domestic production; an internal-revenue tax." This definition is based on Mill's Political Economy (Bk. V. ch. 3, p. 562): "Taxes on commodities are either on production within the country, or on importation into it, or on conveyance or sale within it, and are classed respectively as excise, customs, or tolls and transit duties." It is not necessary for us to decide the outside boundary of the denotation of the term; but it is, to my mind, clear that in our Constitution, whatever else the term may include, it certainly includes a duty paid on goods "produced or manufactured in a State" (see sec. 93 (I.), sec. 95, &c.). These newspapers are goods produced or manufactured in New South Wales. That they were printed in New South Wales is expressly stated in the affidavit filed on behalf of Smith's Newspapers Ltd. It is not so alleged in the affidavit filed on behalf of the other plaintiffs, but it has been admitted before us at the Bar. From the very nature of the case the tax falls ultimately on the purchaser of the newspaper; and sec. 5 of the Act No. 23 shows that the tax is meant to be passed on to him. I need not state again in this case the confirmation of our view which I have already stated in the South Australian case - such as the words of the Encyclopœdia Britannica, of the Oxford Dictionary, and of the Bank of Toronto v. Lambe[5]