Assignment in Eternity
Assignment in Eternity, is a collection of four mixed science fiction and fantasy novellas by Robert A. Heinlein, first published in hardcover by Fantasy Press in 1953, with some of the stories somewhat revised from their original magazine publications, as follows:
Gulf (written and published in 1949 in Astounding Science Fiction, October–November 1949).
Lost Legacy (written in 1939 but first published in 1941 in Super Science Stories, November 1941 as Lost Legion by Lyle Monroe)
Elsewhen, (written in 1939 and first published in 1941 in Astounding Science Fiction September 1941 as Elsewhere by Caleb Saunders)
Jerry Was a Man (written in 1946 and published in 1947 in Thrilling Wonder Stories, October 1947 as Jerry Is a Man)
Heinlein dedicated the book "To Sprague and Catherine": L. Sprague de Camp (his friend and noted science fiction author) and his wife Catherine Crook de Camp. Assignment in Eternity was almost immediately picked up for mass market paperback publication by New American Library's Signet line and is currently (as of 2007) offered by Baen Books in trade paper format, with a republication of Heinlein's Future History chart, even though none of the stories falls into the Future History as detailed in The Past Through Tomorrow and Time Enough for Love.