1968. No dust jacket. This is an ex-Library book. Black cloth with gilt titles to spine. Book has been rebound by library, with expected inserts, stamps and inscriptions. Graphs and charts throughout. Pages 3557-4400. Volume 243 Numbers 13-16. Pages remain bright and clear with minimal tanning or foxing. More prominent to endpapers. Text block edges are slightly scratched. Binding remains firm. Boards have some moderate edge wear, with slight bumping to corners. Mild tanning to spine and edges with some crushing to spine ends. Gilt lettering is bright and clear. Faint water marks overall. Book is slightly warped and forward leaning.