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Keywords:

  • book review;
  • sedimentology;
  • general geology

An old idea in America is that the perfect educator could sit on one end of a log, with a pupil on the other end, and simply by dint of knowledge, organization, and verve be able to teach that student anything. Picture now a log of driftwood on a beach in Wales. The educator takes one end, and we—any of us, but mainly someone not too well versed in geology—take the other end. He is about to clue us in. He picks up a pebble, a beach cobble, and begins.