The Chrysalids

The census claim that Michael Joseph (UK) 1955 is the true first is REFUTED and has been corrected. Two independent bibliographic authorities place the American edition first: L.W. Currey (ABAA/ILAB) catalogues Re-Birth (Ballantine, 1955) as the "First edition" and notes it was "Published later in Britain with textual differences as THE CHRYSALIDS (1955)"; the Science Fiction Encyclopedia lists Re-Birth (New York: Ballantine Books, 1955) as the primary entry with The Chrysalids (London: Michael Joseph, 1955) marked "[vt of the above]" and summarises the novel as "Re-Birth (1955; rev vt The Chrysalids 1955)." ISFDB dates the Ballantine Re-Birth to April 1955. Both editions are collected and both should be named: Ballantine's Re-Birth is the true first; Michael Joseph's The Chrysalids is the first UK edition, the first under the standard title, and textually the preferred text. Note that the popular record — including Wikipedia and many dealer listings — routinely misstates Michael Joseph 1955 as the first publication; those listings describe the UK first without addressing precedence and are not evidence against Currey and SFE. The alternate-title trap is real but runs the opposite direction from the census note.