 What does the E.P. Locator detect?
EVERYTHING IT HAD WAS IN THE GARDEN BY R. A. LAFFERTY [Transcriber's Note: This etext was produced from Worlds of If Science Fiction, March 1961. So again they omitted several tests and went to the cognition scanner. But they were disappointed that they found nothing for several hours as they hovered high over the rotation. There was one more test to run, one very tricky and difficult of analysis, that with the Extraordinary Perception Locator. But this might be so varied or so unfamiliar that often both the machine and the designer of it were puzzled as to how to read the results. The E. P. Locator had been designed by Glaser. But when the Locator had refused to read Positive when turned on the inventor himself, bad blood developed between machine and man. And there was no denying that the Extraordinary Perception Locator (or Eppel) was a contrary machine. On Earth it had read Positive on a number of crack-pots, including Waxey Sax, a jazz tootler who could not even read music. He then narrowed to a smaller area (apparently one individual, though this could not be certain) and got very definite action. Finally it signaled the result, the most exasperating result it ever produces: the single orange light. The Little Probe hovered stationary in the light and the moon-town came up under the dawn. There was a man and a woman, and they were clothed either in very bright garments or in no garments at all, but only in a very bright light. I don't understand that light that surrounds them.
 Level of Perception
 Level of Human Activity  Level of Probing  Level of Spinal Fluid  Level of Perception