Introduction to Einstein, by William F. Hudgings                          78274

  [Subtitle: Ten Cent Pocket Series No. 408]

  [Author: William F. Hudgings]

  [Editor: E. Haldeman-Julius]

  [Link: https://www.gutenberg.org/ebooks/78274]

  note: link will be active within two hours of posting.

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Team at https://www.pgdp.net

Regards,

Robert