1960. Second Edition. 117 pages. No dust jacket. Blue cloth to spine with blue paper covered boards. 2 books, map book contained in blue slipcase. Contains 16 black & white folded maps, a correlation chart of Stratigraphic Units, and a textbook. Textbook contains photographic plates. Pages are mostly clean overall, with faint tanning and faint tanning throughout. Slight crinkling to paper at gutters, however binding remains firm. Plates are bright and clear, with some light tanning and foxing to edges. Thumb-marking present throughout. Folded maps are moderately tanned, with minor creases and folds, and general wear across seams. Boards have visible edge wear with corner bumping. Moderate sunning to spine and edges with some crushing to spine ends. Pen marks to front board of textbook. Noticeable black marks to all surfaces. Book are slightly bowed. Slipcase has moderate edge wear with visible black marks and creases. Large split to bottom edge, with scuffing overall. Pen inscription t