ferent plane. I am
reversing evolution. This third dimension we now exist on evolved,
millions of eons ago, from a fourth dimension. I am sending a lesser
entity back over those millions of eons to a plane similar to one upon
which his ancestors lived inconceivably long ago."

"But, man, how do you know you can do it?"

* * * * *

The doctor's eyes gleamed and his fingers reached out to press a bell.

A servant appeared almost at once.

"Bring me a dog," snapped the old man. The servant disappeared.

"Young man," said Dr. White, "I am going to show you how I know I can do
it. I have done it before, now I am going to do it for you. I have sent
dogs and cats back to the fourth dimension and returned them safely to
this room. I can do the same with men."

The servant reappeared, carrying in his arms a small dog. The doctor
stepped to the control board of his strange machine.

"All right, George," he said.

The servant had evidently worked with the old man enough to know what
was expected of him. He stepped close to the floor disk and waited. The
dog whined softly, sensing that all was not exactly right.

The old scientist slowly shoved the lever toward the right, and as he
did so a faint hum filled the room, rising to a stupendous roar as he
advanced the lever. From both floor disk and upper disk leaped strange
cones of blue light, which met midway to form an hour-glass shape of
brilliance.

The light did not waver or sparkle. It did not glow. It seemed hard and
brittle, like straight bars of force. The newspaperman, gazing with awe
upon it, felt that terrific force was there. What had the old man said?
Warp a third-dimensional being into another dimension! That would take
force!

As he watched, petrified by the spectacle, the servant stepped forward
and, with a flip, tossed the little dog into the blue light. The animal
could be discerned for a moment through the light and then it
disappeared.

"Look in the globe!" shouted the old man; and Henry jerked his eyes from
the column of light to the half-globe atop the machine.

He gasped. In the globe, deep within its milky center, glowed a picture
that made his brain reel as he looked upon it. It was a scene such as no
man could have imagined unaided. It was a horribly distorted projection
of an eccentric landscape, a landscape hardly analogous to anything on
Earth.

* * * * *

"That's the fourt