[Transcriber's Note: This etext was produced from Astounding Science Fiction November, December 1947, January, February 1948. Extensive research did not uncover any evidence that the U.S. copyright on this publication was renewed.] To you, the third-level intellect who has been guided to this imperishable container and who is able to break the Seal and to read this tape, and to your fellows, greetings:…
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