The Wealth of Nations by Part 4 Chapter 5 Page 72

farmer no other customers but either the consumers or their immediate factors, the kidders and carriers of corn, it endeavoured to force him to exercise the trade, not only of a farmer, but of a corn merchant or corn retailer. On the contrary, it in many cases prohibited the manufacturer from exercising the trade of a shopkeeper, or from selling his own goods by retail.

It meant by the one law to promote the general interest of the country, or to render corn cheap, without, perhaps, its being well understood how this was to be done. By the other it meant to promote that of a particular order of men, the shopkeepers, who would be so much undersold by the manufacturer, it was supposed, that their trade would be ruined if he was allowed to retail at all.

The manufacturer, however, though he