Poul Anderson & James Blish 
The Golden Age of Science Fiction – Volume X 

The tenth amazing volume of the Golden Age of Science Fiction! Yesterday House, by Fritz Leiber Wailing Wall, by Roger Dee The Valor of Cappen Varra, by Poul Anderson The Thing in the Attic, by James Blish The Street that Wasn’t There, by Clifford Simak The Snare, by Richard Smith The Repairman, by Harry Harrison The Bluff of the Hawk, by Anthony Gilmore The Problem Makers, by Robert Hoskins