There are a large number of high-wheeled vehicles fitted with solid rubber tires, light opposed-cylinder motors, and planetary or friction-disk transmissions, now upon the market. One of the most. interesting of these, as well as one of the simplest, is the Hat· field "Buggyabout," a plan view of the chassis of ,{hich we illustrate. This air·couled engine has two opposed cylinders of four inches bore and .troke. It. is connected to the countershaft bv two Morse chains wbicb produce the bigh or

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... ow speed. The large pnlleys drive tbe rear wbeeis by patent chain cables. The reverse is obtafred by pressing tbe �ma\1 pulleys agaiDst tbe tires of the rear wbeel.e. The eDgine bas two spark plu�s in eacb cylinder aDd faD-blades in the dywbeel for coo ling, © 1907 SCIENTIFIC AMERICAN, INC.