"cards," except that they applied to every business, from candy to
bridges. As for the news items, each was short, unsensational, with
the simplest kind of head-lines. More the doctor had no chance to
observe.

Abruptly the agent stowed the paper away, and looked up. Presumably
he was seated in some sort of a theater. Directly ahead was the
familiar white rectangle of a photoplay-house screen. And all about
him were heads and shoulders, seemingly belonging to young folks, of
about high-school age. Even to "low necks" for the girls and white
collars for the boys, they were identically like people of the
earth.

In fact, if it had not been for that clock the doctor would have
concluded that there was some mistake, and have ended the
experiment. For some time he learned little; the place was filled
with a confused murmur. His agent, however, took no part in the
conversation that produced this effect; once or twice he yawned.

Suddenly the buzz came to a stop; and next moment a tall figure
stepped upon the platform in front of the screen.

"Class," began this person immediately, "to-day we will summarize
what we have learned during the past week about the solar system of
which our planet is one element."

And as he spoke the doctor saw that there had been no mistake. For,
although the agent's subconscious mind had served to translate what
was said into language understandable by the doctor, yet his eyes
plainly told him that the professor's lips were saying something