Legion of Time by Jack Williamson:
Science Fiction Inventions, Technology and Ideas

The Legion of Time dramatizes, in magnificently lurid terms, the feeling that events vital to the whole future of mankind were impending, and that fundamental political questions might be satisfied for once and for all. (From the Survey of Science Fiction Literature.)


('Legion of Time' by Jack Williamson)

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Sub-Etheric
Below the level at which ordinary light is propagated.

 

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