es of lead poisoning are also to be travel of the car, the superimposed track being also object in view. given, as, for example, working too long at a certain provided with a third rail. The position for the oper- The “Leap-Frog” Railway, which will probably be ator is in the center of the… … one set of wheels of the over-riding car public libraries. Papers may be written in English, is in use while it is moving over the French or German. Printed books will other car. The superimposed track THE “LEAP-FROG” RAILWAY. not be admitted. The completed manu- or overswitch, with the surface of…
Internet Archive · Public domain (published before 1931). Free to use for anything.
