BENJAMIN FRANKLIN As Politician and Diplomat BENJAMIN FRANKLIN As Scientist BENJAMIN FRANKLIN As Man of Letters THE MENTOR - DEPARTMENT OF BIOGRAPHY MAY 15, 1918 DAYLIGHT SAVING FRANKLIN'S IDEA LEARN ONE THING MAY 15 1918 SERIAL NO. 155 THE By ALBERT BUSHNELL HART Professor of Government DEPARTMENT OF VOLUME 6 TWENTY CENTS A COPY |