U. S. coast guardmcn, trying to stop the flow of rum, show they mean business by firing on boats. Photo is of craft known as the Black Duck, captured in .t chase off Dumpling Rock, at the eastern entrance of Narragansett Bay, R. I., gunfire, of coast patrol boat 290 causing deaths of three members of the rum runner’, crew, and the critical injury of the, fourth member. ' Picture shows guardsmen inspecting the captured boat with its' 500 case of liquor at New London, Conn. - ■