1969. 6th Printing. 784 pages. No dust jacket. This is an ex-Library book. Blue cloth. Ex-Library copy, with expected inserts, stamps and inscriptions. Black and white illustrations throughout. Binding remains firm. Pages and illustrations are lightly tanned throughout. Water staining to top edge of some pages, text remains unaffected. Boards have light shelf-wear with corner bumping. Slight crushing to spine ends.