Mr. Crane put his fingertips together. "Yes?"

"Personally, I think that some day man will realize just what he is searching for and will invent a machine that will enable the child to project, just as a film throws an image on a screen, the visions in his psyche.

"I see you're interested," he continued. "You would be, naturally, since you're a professor of philosophy. Now, let's call the toy a specterscope, because through it the subject sees the spectres that haunt his unconscious. Ha! Ha! But how does it work? If you'll keep it to yourself, Mr. Crane, I'll tell you something: My native country's scientists have developed a rather simple device, though they haven't published anything about it in the scientific journals. Let me give you a brief explanation: Light strikes the retina of the eye; the rods and cones pass on impulses to the bipolar cells, which send them on to the optic nerve, which goes to the brain ..."

"Elementary and full of gaps," said Jack's father.

"Pardon me," said Mister. "A bare outline should be enough. You'll be able to fill in the details. Very well. This specterscope breaks up the light going into the eye in such a manner that the rods and cones receive only a certain wavelength. I can't tell you what it is, except that it's in the visual red. The scope also concentrates like a burning-glass and magnifies the power of the light.

"Result? A hitherto-undiscovered chemical in the visual purple of the rods is activated and stimulates the optic nerve in a way we had not guessed possible. An electrochemical stimulus then irritates the subconscious until it fully wakes up.

"Let me put it this way. The subconscious is not a matter of location but of organization. There are billions of possible connections between the neurons of the cortex. Look at those potentialities as so many cards in the same pack. Shuffle the cards one way and you have the common workaday cogito, ergo sum mind. Reshuffle them, and, bingo! you have the combination of neurons, or cards, of the unconscious. The specterscope does the redealing. When the subject gazes through it, he sees for the first time the full impact and result of his underground mind's workings in other perspectives than dreams or symbolical behavior. The subjective Garden of Eden is resurrected. It is my contention that this specterscope will some day be available to all children.

"When that happens, Mr. Crane, you will understand that the world will 

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