The exportation of English wool has been prohibited. That of beaver skins, of beaver wool, and of gum Senega has been subjected to higher duties. Great Britain, by the conquest of Canada and Senegal, having got almost the monopoly of those commodities.

That the mercantile system has not been very favourable to the revenue of the great body of the people, to the annual produce of the land and labour of the country, I have endeavoured to show in the fourth book of this Inquiry. It seems not to have been more favourable to the revenue of the sovereign, so far at least as that revenue depends upon the duties of customs.

In consequence of that system, the importation of several sorts of goods has been prohibited altogether. This prohibition has in some cases entirely prevented, and in others