The Wealth of Nations by Part 4 Chapter 7 Page 74

Britain, but of some foreign countries with which the balance of trade was believed to be unfavourable to Great Britain.

The prohibition of exporting from the colonies, to any other country but Great Britain, masts, yards, and bowsprits, tar, pitch, and turpentine, naturally tended to lower the price of timber in the colonies, and consequently to increase the expense of clearing their lands, the principal obstacle to their improvement.

But about the beginning of the present century, in 1703, the pitch and tar company of Sweden endeavoured to raise the price of their commodities to Great Britain, by prohibiting their exportation, except in their own ships, at their own price, and in such quantities as they thought proper. In order to counteract this notable piece of mercantile policy, and