.President Frank Hedley, of the Interborough Rapid Transit Corporation, is seen demonstrating the new change-making machine just installed in the 77th Street station of the Lexington avenue subway. New York. In connection with the nickel-in-the-slot turnstiles installed a year ago, the new machine will make entrance lt;o the subway an entirely automatic affair and will save millions of dollars in wages now paid to the money changers in the