The Wealth of Nations by Part 4 Chapter 7 Page 144

commonly given to those foreign correspondents to whom they export their tobacco. At the port of London, indeed, it is commonly sold for ready money. The rule is, Weigh and pay. At the port of London, therefore, the final returns of the whole round-about trade are more distant than the returns from America by the time only which the goods may lie unsold in the warehouse; where, however, they may sometimes lie long enough. But had not the colonies been confined to the market of Great Britain for the sale of their tobacco, very little more of it would probably have come to us than what was necessary for the home consumption. The goods which Great Britain purchases at present for her own consumption with the great surplus of tobacco which she exports to other countries, she would in this case probably have purchased with the immediate produce of her own