This wonderful invention was perfected after many years of intense application by a thorough mechanic and electrician. It has been demonstrated and found to be thoroughly practical and is far in advance of either the present two-railed electric railroads, or the Gyroscopic types of Monorail cars which have lately attracted considerable attention because of their seeming disregard of the law of gravity. The Gyroscopic Monorail, at a great expense and complication, eliminates one rail, but there is no particular gain in so doing, in fact there is a distinct loss for the thing that limits the speed of the ordinary electric car, is the loss of grip on the rail, and in the Gyroscopic Monorail the bearing surface of the steel wheels is reduced to just one-half that of the ordinary car. The Boyes Monorail uses the principle of the gyroscope used in the Brennan Monorail with a difference that where the Brennan gyroscope acts as a top the Boyes Monorail is kept true by the heavy drive wheel which acts on the principle of a hoop or rolling wheel. The Boyes train is made in short cars or sections rigidly coupled together with rubber padded couplings. Each car or section rides on a single concave leather faced wheel that runs on a broad convex steel rail. This wheel is set up within the body of the car, thus permitting the car to straddle the track. There is a door on either side of each eight-foot car or section, which is opened and closed electrically. Only six people enter at a doorway, thus eliminating all delays and jams at crowded stations. The leather faced wheel grips the track to such a great degree that it is practicable to build the cars as light per passenger as is the bicycle, thus giving great efficiency and power. A train of the Boyes type to carry the same passengers as the subway cars of New York, weighs one-thirtieth as much. The power is electrically fed to the train from a small “third” rail. _Speed Possibilities._