If I were a good businessman, and cared a tittle for my unborn great grandchildren, which I do not, I would gather all the junk and the wrecked automobiles, comb the city dumps, and pile these gleanings in mountains and spray the whole thing with that stuff the Navy uses to mothball ships. At the end of a hundred years my descendants would be permitted to open this treasure trove and would be the antique kings of the world.