"'The equipment was again tried at one thousand light hours, but no success was found even though ten or twelve hours ensued during the listening test. Because our supplies were now running low, the test was abandoned at this distance and....' Here, gentlemen, follows an account of at least a hundred hours of testing constantly with the two ships at varying distances. Success came sometimes, complete failure at others. There is a complete set of spacial maps, but these show no contours of signal strength nor correlation. "Only a man who believed that the Z-wave followed radio communications would establish such a correlation." "And how was this correlation located?" asked Lewdan. "Because I noted that when failure came, it was noted at distances, 'Approximately ten light hours, ... fifteen light hours ... three light hours.' But when success came, it came at, 'Seven, point nine-eight, or fourteen, point four-two light hours.' In other words, gentlemen, they knew their separation only when success came and they could measure the distance accurately by the radio timing wave." During this time, the hands were dropping as the answer to one question answered the questions of others. At the end, there were no more hands upraised. Thorndyke then said: "We are now ready to continue with this lecture." Paul took a gulp of water and started off again: "I have one other item to bring forth. I have been working with the galactic survey--" and Paul went on for many minutes, explaining in detail what they had been doing and why. He finished up with his determination to test the Z-wave in accordance with his own theory. Then he said: "I have here a recording made over the Z-wave receiver I took with me to Proxima Centauri I. As you know, the interstellar beacon was erected on the top of the Z-wave Central Building. No visual connection seems necessary, but we all know that dielectric or permeabilic coupling serves in many places far better than a conducting link; it is my idea that similar factors to permeability and capacity will be found in the Z-wave. However Z-wave Central is _all_ supplied from _one_ power line. Here is a physical connection.