Seeds of the Dusk by Raymond Z. Gallun:
Science Fiction Inventions, Technology and Ideas

Excellent story about the invasion of Earth in the far future. Can the remnants of humanity survive the threat posed by a single spore from space?


("Seeds of the Dusk" by Raymond Z. Gallun)

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Designed Bacteria - purposive genetic modification
Very early reference to the idea of bacteria designed to wipe out a particular species, and no others.

 

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