[posted] Posted (#54897, Herschel) !

[Al Haines]

Preliminary Discourse--Natural Philosophy, by John F. W. Herschel        54897
  [Full title: Preliminary Discourse on the Study of Natural Philosophy]
  [Link: http://www.gutenberg.org/5/4/8/9/54897 ]
  [Files: ; 54897-0.txt; 54897-h.htm]

Thanks to Sonya Schermann, Charlie Howard, and the Online
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Regards,
Al