His eyes and voice were imperative, and I glanced at my watch, and snicked over the switch. Again the cylinder broke into light, again the shaft of force shot down into the cube to hide Pollard's splendid figure.

Dutton and I waited with feverish intensity in the next minutes. Pollard was standing still beneath the broad shaft of force, and so was hidden in it from our eyes. What would its lifting disclose? Would he have changed still more, into some giant form, or would he be the same, having already reached humanity's highest possible development?

When I shut off the mechanism at the end of the appointed period, Dutton and I received a shock. For again Pollard had changed!

He was no longer the radiant, physically perfect figure of the first metamorphosis. His body instead seemed to have grown thin and shrivelled, the outlines of bones visible through its flesh. His body, indeed, seemed to have lost half its bulk and many inches of stature and breadth, but these were compensated for by the change in his head.

For the head supported by this weak body was an immense, bulging balloon that measured fully eighteen inches from brow to back! It was almost entirely hairless, its great mass balanced precariously upon his slender shoulders and neck. And his face too was changed greatly, the eyes larger and the mouth smaller, the ears seeming? smaller also. The great bulging forehead dominated the face.

Could this be Pollard? His voice sounded thin and weak to our ears. I

"You are surprised to see me this time? Well, you see a man a hundred million years ahead of you in development. And I must confess that you appear to me as two brutish, hairy cave-men would appear to you."

"But Pollard, this is awful!" Dutton cried. "This change is more terrible than the first. . if you had only stopped at the first. ."

The eyes of the shrivelled, huge-headed figure in the cube fired with anger. "Stop at that first stage? I'm glad now that I didn't! The man I was fifteen minutes ago. . fifty million years ago in development. . seems now to me to have been half-animal! What was his big animal-like body beside my immense brain?" j

"You say that because in this change you're getting away from all human emotions and sentiments!" I burst. "Pollard, do you realize what you're doing? You're changing out of human semblance!"