Contents Include; Cover-Nations Largest Solar Furnace at US Army Qartermaster Research Center at Matick Massachusetts, Back Cover-Barred Sprial Galaxy NGC 1365, Submarine and Space Medicine Symposium, The Largest American Solar Furnace, World's Astronomers Meet in Moscow, American Astronomers Report, The IAU New Nomenclature, Among Southern Galaxies Part X, Mans Farthest Step into Space, Total Great Photos and Ads! Some wear that is slight, soiling of cover corners and some creasing, soiling on cover edges and one small crack on cover right edge, Overall Good Condition!