[posted] Posted (#30001, Price) !

[Al Haines]

On the Origin of Clockwork, by Derek J. de Solla Price                   30001
  [Full title: On the Origin of Clockwork, Perpetual Motion Devices, and
        the Compass]
  [Link: http://www.gutenberg.org/3/0/0/0/30001 ]
  [Files: 30001.txt; 30001-8.txt; 30001-0.txt; 30001-h.htm]

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http://www.pgdp.net.



Regards,
Al