A Martian odyssey / S.G. Weinbaum -- Night / D.A. Stuart -- The day is done / L. del Rey -- Heavy planet / M.A Rothman -- "And he built a crooked house" / R.A. Heinlein -- Proof / H. Clement -- A subway named Mobius / A.J. Deutsch -- Surface tension / J. Blish -- Country doctor / W. Morrison -- The holes around Mars / J. Bixby -- The deep range / A.C. Clarke -- The cave of night / J.E. Gunn -- Dust rag / H. Clement -- Pāte de foie gras / I. Asimov -- Omnilingual / H.B. Piper -- The big bounce / W.S. Tevis -- Neutron star / L. Niven.