London: The Aquarian Press, 1967. Third impression. Octavo, 176 pages. In Good condition with a Fair plus dust jacket. Spine is green with white and orange print. Dust jacket has light edge wear, rubbing/shelf wear. Price unclipped: “25/- net”. Boards in grey cloth; light wear to spine caps and corners. Text block has spotting to top edge. Illustrated: b&w diagrams. NOTE: Shelved in Netdesk Column W. More