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Show TRAVELS OVER IMPASSABLE ROADS ft " EjA C si s 1 D. H. Shepherd, assistant lighthouse keeper at Sankaty Head, Mass., has designed an attachment which will enable a small car to travel rapidly over deep sand and marshy soil. By means of a special tread, ten Inches wide, placed around the wheels In place of tires, the car has been able to attain speed as high as 27 miles per hour over ground otherwise almost impassible. f Mr. Shepherd states that even with three people In the car very satisfactory progress has been made over very soft and shifting sand. |