NY: Farrar, Straus, 1953.
Edward Waldo, whose name was changed to “Theodore Sturgeon” after his divorced mother remarried, began his writing career in the late 1930s; he was a close contemporary of the other greats of science fiction’s Golden Age, like Heinlein, Asimov, and Clark, though rather more highly regarded by literary critics than they were. He also had an enormous influence on the next couple of generations of SF writers.