[Some of you received a garbled version of the message below so I am redistributing it. Sorry to Roger and everyone else for the inconvenience. HB] You allude to Milton Friedman's example in the PBS and BBC-TV series on "Free To Choose". He sat in a lecture theatre at Glasgow University and illustrated Adam Smith's principle of the division of labour with the example of a lead pencil. You can see the video of this free at http://www.freetochoose.net/tv_1980_video.html You also mention Henry George's little book, _Protection and Free Trade_. But the best example is in his _The Science of Political Economy_ (1897), Book III, Ch. IX, "Cooperation -- Its Two Ways", where he illustrates the principle with reference to a sailing ship as well as the baking of bread. Roger Sandilands