1969. No Edition Remarks. 52 pages. Pictorial dust jacket over silver cloth. Black and white and colour illustrations throughout. Pages are bright and clear with mild foxing and tanning to text block edges. Light thumb marking present to title page. Binding remains firm. Boards have minor corner bumping and edgewear with mild tanning and scuffing overall. Spine has soft crushing to ends. Unclipped dust jacket with minor rubbing, chipping and tearing to edges. Moderate tanning and scuffing overall.
Active Science, 2
