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    <subfield code="a">Campbell, John W., Jr.</subfield>
    <subfield code="q">(John Wood),</subfield>
    <subfield code="d">1910-1971</subfield>
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    <subfield code="a">The metal horde</subfield>
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    <subfield code="a">Salt Lake City, UT :</subfield>
    <subfield code="b">Project Gutenberg,</subfield>
    <subfield code="c">2024</subfield>
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    <subfield code="a">1 online resource :</subfield>
    <subfield code="b">multiple file formats</subfield>
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    <subfield code="a">Produced from Amazing Stories April 1930.</subfield>
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    <subfield code="a">Release date is 2024-05-24</subfield>
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    <subfield code="a">Greg Weeks, Mary Meehan and the Online Distributed Proofreading Team at http://www.pgdp.net</subfield>
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    <subfield code="a">"The Metal Horde" by John W. Campbell, Jr. is a science fiction novel that was likely written in the early 20th century. Set in a future where humanity has colonized multiple planets in the solar system, the story delves into the themes of advanced machinery, space exploration, and warfare against an alien mechanical race. It explores the profound implications of intelligent machines and the potential consequences of their evolution and autonomy.  The narrative focuses on the conflict between humans and a powerful alien race known as the Sirians, who travel across space in a massive fleet of machines. Led by the brilliant scientist Steven Waterson, humanity must prepare for an impending invasion while grappling with the challenges of interplanetary communication and warfare. As the Sirians aim to conquer Mars and other planets, the human characters develop new weapons and strategies, including the innovative de-activating field, to defend against the technologically advanced invaders. The story is a gripping blend of scientific reasoning and speculative elements, addressing the existential threats posed by machines that may outthink and outmaneuver their creators. Ultimately, it raises questions about intelligence, existence, and the future of both humanity and artificial beings. (This is an automatically generated summary.)</subfield>
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    <subfield code="p">Originally published:</subfield>
    <subfield code="c">Jamaica, NY: Experimenter Publications Inc., 1930</subfield>
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    <subfield code="a">Artificial intelligence -- Fiction</subfield>
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    <subfield code="a">Morey, Leo,</subfield>
    <subfield code="d">1889-1965</subfield>
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    <subfield code="a">Produced from Amazing Stories April 1930.</subfield>
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    <subfield code="u">https://www.gutenberg.org/ebooks/73679</subfield>
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