New York, Crowell-Collier, 1952. A very good copy. Contains the first printing of an important Bradbury story 'A Sound of Thunder'. A short story involving time travel wherein a butterfly is killed causing a rift in the future - the first written example of the Butterfly Effect. The story was later published in Golden Apples. Uncommon. Magazine a little worn to the edges and a 20mm closed tear to lower spine. Some rolling to the edges but excellent overall. [9165, Hyraxia Books].