JEROMH, Dec, 3- (Special) — Sheriff Lee 8. Johnson and State Officer Earl Small are investigating a gasoline explosion which resulted in ruin of a motor oar by flames and burning of two Twin Falls men early Sunday at the Topper” inn.The men burned in the gasoline blast were Harry Prough and Harry Moore. The former suffered injuries to his right knee; Moore, owner of the machine, sustained bums on both hands. Gordon Waddell, also of Twin Falls, escaped without injury.It is believed a match or cigarette spark may have ignited a can of gasoline carried by one of the men.Two unidentified Jerome youths brought Prough and Moore here after the accident, and the state officer took the injured pair to St.Valentine’s hospital at Wendell. They were released from the hospital at 6 p. m. Sunday.