Talk:1911 Encyclopædia Britannica/Logic

Sources:
 * first page: http://en.wikisource.org/w/index.php?title=User:Tim_Starling/ScanSet_PNG_demo&vol=16&page=EC6A901
 * last page: http://en.wikisource.org/w/index.php?title=User:Tim_Starling/ScanSet_PNG_demo&vol=16&page=EC6A940