how they got that way
ONCE, A VERY LONG TIME AGO, DINOSAURS LUMBERED OVER parts of what is now Arizona and, departing, left behind them footprints in the muds of time. Occasionally the mud hardened into stone and the prints are pointed out to visitors. Concerning them a pleasant story is told.
"Them footprints," said a guide, "is four hundred million and four years old." "But how can you be so precise as all that?" "Well, (apologetically) of course I don't really know nothing about it myself. But when I came they told me they was four hundred million years old. And I been here four years."