Contents Include;Cover-Motion picture record of Buble Motion from a 0.55 -pound tetryl charge detoned 300 feet below water, Pulsating Stars, Radio Astronomy at Jordell Bank Part II, American Astronomers Report, Back Cover-Total Solar Eclipse of February 25,1952, Regular Departments, Great Photos and Ads! Some wear that is slight, soiling of cover corners and some creasing,Overall Good Condition!