| Notes |
Various A.C. and D.C. systems, fundamental differences discussed. D.C. loco of 1890 C. and S.L.R. (photo by C.Baker), motors, two uit single phase loco on St. Gotthard Line Swiss Federal Railways, 4-coupled shunting engine, auxiliary equipment, D.C. motor car with electro-magnetic multiple unit control Metropolitan Line L.P.T.B., lowering a 275 h.p. motor into a bogie Southern Railway (Western Section) (photo by Metropolitan Vickers Electrical, auxiliary equipment Buenos Aires Western Railway |