Rescue party / A.C. Clarke -- Juggernaut / A.E. van Vogt -- With folded hands / J. Williamson -- The great fog / H.F. Heard -- Mimsy were the borogroves / L. Padgett -- The ethical equations / M. Leinster -- It's great to be back / R.A. Heinlein -- Loophole / A.C. Clarke.