Natural Philosophy of William Gilbert, by W. James King 31999 [Full title: The Natural Philosophy of William Gilbert and His Predecessors] [Link: http://www.gutenberg.org/3/1/9/9/31999 ] [Files: 31999.txt; 31999-8.txt; 31999-h.htm] Thanks to Chris Curnow, Joseph Cooper and the Online Distributed Proofreading Team at http://www.pgdp.net Regards, Al