Metropolitan Subway and Elevated Systems, by General Electric
   Company    54009
     [Subtitle: Bulletin 49]
     [Link: http://www.gutenberg.org/5/4/0/0/54009 ]
     [Files: 54009-0.txt; 54009-h.htm]
   Thanks to Juliet Sutherland, ellinora and the Online
   Distributed Proofreading Team at http://www.pgdp.net
   Chuck