Then there came more acres teeming with fractional horsepower motors; he could hear their beehive hummings even through the plexiglass. The things they drove Lee couldn't make out because the adjoining acres of this underground hothouse for mushrooming machines were again shrouded in darkness except for sparks which crossed the unfathomable expanse like tracer bullets. Struck with a sort of word blindness caused by the sensory impressions barrage, Lee could no longer grasp the meaning of Vivian's voice as it went on and on explaining things like "crystal cells," "selenoid cells," "grey matter pyramidal cells," powered somehow by atomic fission, "nerve loops" and "synthesis gates" which were not to be confused with "analysis gates" while they looked exactly the same....

Apart from this at least one half of his mental and physical energy had to be expanded in suppressing nausea and bracing himself against the gyrations which still jerked his feet from under him and made friction disks of his shoulders as his body swayed from side to side. All of a sudden he felt that he was being derailed. There was an opening in the plastics wall of the cylinder; a curved metal shield like the blade of a bulldozer jumped into his path, caught him, slowed down his momentum and delivered him safely at a door marked "Apperception-Center 24." It opened and within its frame there stood an angel neatly dressed in the uniform of a registered nurse.

"There," said the angel, "at last. How did you like your little Odyssey through The Brain, Dr. Lee?"

Lee pushed a hand through the mane of his hair; it felt moist and much tangled up.

"Thanks," he said. "It was quite an experience. I enjoyed it; Ulysses, too, probably enjoyed his trip between Scylla and Charybdis—after it was over! It's Miss Leahy, I presume."

The reception room where he had landed, the long white corridor, the instruments gleaming in built-in recesses behind crystal glass, the nurse's uniform; all spelled clinic, a private one rather for the well-to-do. Since the procedure was routine he might as well submit to it, Lee thought. He felt the familiar taste of disinfectant as a thermometer was stuck into his mouth and then the rubber tube around his arm throbbing with the vigorous pumpings of the efficient Vivian.

"L. F. Mellish, M.D.—I. C. Bondy, M.D." was painted on the frosted glass door where she led him afterward. The two medics received Lee with a show of respect mixed with professional cordiality. Both Bondy, the dark and oriental looking chap, and Mellish, blond and florid, were in their middle twenties and both wore tweeds which depressed Lee with the perfection of their cut. Seeing the professional table at the center of the office, Lee frowned but started to undress; he wanted this thing done and over with as soon as possible.

"No, no—that won't be necessary, Dr. Lee," they stopped him laughingly, "We have already a complete medical report on you. Came in this morning from the Queen Elizabeth Hospital in Canberra on our request. You're an old malaria man, Dr. Lee; your first attack occured in '42 during the Pacific campaign. Pity you refused to return to the States for a complete cure right then. As it is it's turned recurrent; left you a bit anemic, liver's slightly affected. But in all other respects you're sound of limb and wind; we've gone over the report pretty carefully."

"Then why bother with me at all?" Lee said irritably. He had been in doctors' hands too often and had become a little impatient of them.

The freckled hand of Mellish patted his arm. "We do things different over here," he said and Bondy chimed in. "Or rather The Brain does. Just lie down on that table, Dr. Lee, and relax. We're going to enjoy a little movie together, that's all."