The John W. Campbell Awards, Vol. 5 - edited by George R.R. Martin. Each of the fifth (1977) J.W.Campbell award nominees has a new novelet/novella (plus a reprint from 1977 by Cherryh.)

(Preface by George R.R. Martin)
(Introduction by Poul Anderson)
"In the Dowaii Chambers" by Jack L. Chalker
"Dreams" by M.A. Foster
"A Catastrophe Machine" by Carter Scholz
"The Dark King" by C.J. Cherryh (reprint)
"Companions" by C.J. Cherryh