London: Dennis Dobson, 1959. First / First. Hardback. A very good copy. Expanded from Plus X from 1956, published previously in this form by ACE in 1958. A little edgewear, with some rubbing and a few short creases. Eric Frank Russell (1905-1978) is perhaps best known for WASP, most of his sf was published in Astounding, with the horror being published Weird Tales. Very Good / Very Good. Item #11552