Worlds of Maybe

Dell Laurel Leaf mass paperback, 1st printing Nov. 1974, Dell 440-08603-099, 208 pages. Short stories in that sub-genre of science fiction called alternate history. Includes: Sidewise in Time, by Murray Leinster; Sail On! Sail On!, by Philip José Farmer, Slips Take Over, by Miriam Allen deFord; All the Myriad Ways, by Larry Niven (nominee, 1969 Hugo Award); Living Space, by Isaac Asimov; Translation Error, by Robert Silverberg; Delenda Est, by Poul Anderson.