The Wealth of Nations by Part 1 Chapter 10 Page 32

exercising the one and of surmounting the other.

Their wages are not greater than those of common labourers at the port which regulates the rate of seamen’s wages. As they are continually going from port to port, the monthly pay of those who sail from all the different ports of Great Britain is more nearly upon a level than that of any other workmen in those different places; and the rate of the port to and from which the greatest number sail, that is the port of London, regulates that of all the rest. At London the wages of the greater part of the different classes of workmen are about double those of the same classes at Edinburgh. But the sailors who sail from the port of London seldom earn above three or four shillings a month more than those who sail from the port of Leith, and the difference is frequently not so great.