"Now I wonder why, in reading history, we always find that invaders came from the North ?" "I've read," the drummer went on, quite enthusiastic over the subject in hand, "that the present North Polar regions were tropical in temperature and in animal and vegetable life, a long time ago." "Yes, they find there, skeletons of animals which now exist only in the tropics," said Jimmie, "and tropical trees deep under the ice.

The earth, they say, shifted in its orbit and it grew cold up there.

I guess that is why we read of people always coming down from the North." "They had to get out of the North," the drummer mused, "because during the Glacial period an ice-cap miles in thickness covered the world down as far as the dividing line between the British possessions and the United States.

That is the way California and Mexico and Central America were populated, anyhow." "You mean that the immediate ancestors of the people of those countries came from the North," Jimmie criticized.

"For all we know, the people who lived before them came from the South.