The Wealth of Nations by Part 4 Chapter 8 Page 44

This statute leaves them subject to all the old duties which had ever been imposed upon them, the old subsidy and one per cent outwards.

By the same statute a great number of foreign drugs for dyers’ use are exempted from all duties upon importation. Each of them, however, is afterwards subjected to a certain duty, not indeed a very heavy one, upon exportation.

Our dyers, it seems, while they thought it for their interest to encourage the importation of those drugs, by an exemption from all duties, thought it likewise for their interest to throw some small discouragement upon their exportation. The avidity, however, which suggested this notable piece of mercantile ingenuity, most probably disappointed itself of its object. It necessarily taught the importers to be more careful than