Electricity and Magnetism, by Elisha
   Gray������������������������������� 34221
   � [Subtitle: Nature's Miracles, Vol. III.]
   � [Link: [1]http://www.gutenberg.org/3/4/2/2/34221 ]
   � [Files: 34221.txt; 34221-8.txt; 34221-h.htm]
   Thanks to Chris Curnow and the Online Distributed
   Proofreading Team at [2]http://www.pgdp.net (This file was
   produced from images generously made available by The
   Internet Archive)
   Many thanks
   Janet

References

   1. http://www.gutenberg.org/3/4/2/2/34221
   2. http://www.pgdp.net/