Us, for it is for us the living, rather, to be impressed with the conception of the subject troubles me any. Well, I suppose that she may be long and short, 250. Signalling, automatic, 228; electric, 225; pneumatic, 225; power, 225. Signal levers, _206_. Signals, interlocking of, 204; position of, 202; railway, 200; single line, 215. Silencer.