-as the
room, for Robert Delamater, President-in-name of the United States,
turned whirlingly, dizzily black....

* * * * *

Robert Delamater, U. S. Secret Service operative, entered the office
of his Chief. Two days of enforced idleness and quiet had been all he
could stand. He laid a folded newspaper before the smiling, welcoming
man.

"That's it, I suppose," he said, and pointed to a short notice.

"X-ray Operator Killed," was the caption. "Found Dead in Office in
Watts Building." He had read the brief item many times.

"That's what we let the reporters have," said the Chief.

"Was he"--the operative hesitated for a moment--"pretty well fried?"

"Quite!"

"And the machine?"

"Broken glass and melted metal. He smashed it as he fell."

"The Eye of Allah," mused Delamater. "Poor devil--poor, crazy devil.
Well, we gambled--and we won. How about the rest of the bet? Do I get
the Mint?"

"Hell, no!" said the Chief. "Do you expect to win all the time? They
want to know why it took us so long to get him.

"Now, there's a little matter out in Ohio, Del, that we'll have to get
after--"

THE "TELELUX"

Sound and light were transformed into mechanical action at the banquet
of the National Tool Exposition recently to illustrate their
possibilities in regulating traffic, aiding the aviator, and
performing other automatic functions.

A beam of light was thrown on the "eyes" of a mechanical contrivance
known as the "telelux," a brother of the "televox," and as the light
was thrown on and off it performed mechanical function such as turning
an electric switch.

The contrivance, which was developed by the Westinghouse Electric and
Manufacturing Company, utilizes two photo-electric cells, sensitive to
the light beam. One of the cells is a selector, which progressively
chooses any one of three operating circuits when light is thrown on
it. The other cell is the operator, which opens or closes the chosen
circuit, thus performing the desired function.

S. M. Kintner, manager of the company's research department, who made
the demonstration, also threw music across the room on a beam of
light, and light was utilized in depicting the shape and direction of
stresses in mechanical materials.

[Illustration _"The globe leaped upward into the huge coil, which
whirled madly."_]

The Fifth-Dimension Catapult

A COMPLETE NOVELETTE

_By Murray Leinster_

The story of To