Chapter 29

The final Pliocene specimen showed no land cities except on the antarctic continent and the tip of South America, nor any ocean cities north of the fiftieth parallel of South Latitude. Knowledge and interest in the northern world, save for a study of coast lines probably made during long exploration flights on those fan-like membranous wings, had evidently declined to zero among the Old Ones. Destruction of cities through the up-thrust of mountains, the centrifugal rending of continents, the seismic convulsions of …