On Aggression by Konrad Lorenz
1966. First Edition Thus. 273 pages. Pictorial dust jacket over brown cloth. Clean pages with light tanning and foxing throughout. Tightly bound with faint thumb-marking throughout. Pencil inscription to front endpaper. Moderate foxing to text block edges. Mild droplet staining to text block edges. Boards have light edge wear with minor corner bumping. Mild crushing to spine, with occasional markings overall. Book has forward lean. Boards are mildly warped. Unclipped jacket has light edgewear with tears and creasing. Mild rubbing and marking all over.