We saw very briefly on the glowing mirror the image of a Time-cage like our own, but smaller. It was pursuing us. But why, or who might be operating it we could not then guess.


y attention went back to the Time-dials, and then to the window. The Cosmorama now was proceeding with a slowing sweep of change. It was less blurred; its melting outlines could more readily be perceived. The line of seashore swept like a gray gash across the vista. The land stretched back into the haze of distance.

500,000 B. C. Again my fancy pictured what was transpiring upon this vast stage. The apes roamed the Earth. There is no one to say what was here in this grayness of the Western Hemisphere stretching around me, but in Java there was a man-like ape. And then it was an ape-like man! Mankind, here at last! Man, the Killer! Of all the beasts, this new thing called man, most relentless of killers, had come here now to struggle upward and dominate his world! This man-like ape in a quarter of a million years became an ape-like man.

250,000 B. C. and the Heidelberg man, a little less ape-like, wandered throughout Europe....

We had felt, a moment before, all around us, the cold of a dense whiteness which engulfed the scene. The first of the great Glacial periods? Ice coming down from the Poles? The axis of the Earth changing perhaps? Our spectral cage hummed within the blue-gray ice, and then emerged.

The beasts and man fought the surge of ice, withdrawing when it advanced, returning as it receded. The Second Glacial Period came and passed, and the Third....

We swept out into the blended sunlight and darkness again. The land stretched away with primitive forests. The dawn of history was approaching. Mankind was questing upward now, with the light of Reason burning brightly at last....

At 75,000 B. C., when the Third Glacial Period was partially over, man was puzzling with his chipped stone implements. The Piltdown—the Dawn Man—was England....