Contents Include; The Useful Algae, Artificial Muscle, The Behaviour of the Stickleback, The Nature of Solids, The Influence of the Potato, The Breeder Reactor, Traumatic Shock, Arroyos, Letters, 50 and 100 Years Ago, Childrens Books, The Amateur Scientist, Annual Index, Bibliography, Light wear, a few small creases to edges, Some very light page discoloration,Overall Good Condition!