Talk:1911 Encyclopædia Britannica/Descartes, René

Sources:
 * first page: http://en.wikisource.org/w/index.php?title=User:Tim_Starling/ScanSet_PNG_demo&vol=08&page=EB8A094
 * last page: http://en.wikisource.org/w/index.php?title=User:Tim_Starling/ScanSet_PNG_demo&vol=08&page=EB8A105