The Differential Thermal Investigation of Clays by Robert C. Mackenzie
1957. First Edition. 456 pages. White dust-jacket over blue cloth. Pages remain bright and clear with minimal tanning and foxing. Binding is weak. Boards have mild edge-wear with slight rubbing to surfaces. Spine has crushing to both ends. Book has forward lean. White staining present. Unclipped jacket has light edgewear with tears and creasing.