Contents Include;Cover-Northern Lights on 10/21/1957 as seen from Brookfield Vermont,An Aurora Pastel, Irregularities in the Earths Rototation, More Satellite Talk, Henri Poincare and His Cosmological Studies, American Astronomers Report, American Astronomers Report, Bulletin for Visual Observers of Satellites, Back Cover-Sprial Galaxy NGC 253, 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!