The Wealth of Nations by Part 4 Chapter 7 Page 143

hogsheads, therefore, must be exported to other countries, to France, to Holland, and to the countries which lie round the Baltic and Mediterranean Seas. But that part of the capital of Great Britain which brings those eighty-two thousand hogsheads to Great Britain, which re-exports them from thence to those other countries, and which brings back from those other countries to Great Britain either goods or money in return, is employed in a round-about foreign trade of consumption; and is necessarily forced into this employment in order toIf the one can keep in constant employment but a third or a fourth part of the domestic industry which could be maintained by a capital returned once in the year, the other can keep in constant employment but a fourth or fifth part of that industry.

At some of the out-ports a credit is