Contents (view Concise Listing)

• Agent of Vega • [Agents of Vega] • (1949) • novella by James H. Schmitz
• Pax Galactica • (1952) • novelette by Ralph Williams
• Police Operation • [Paratime Police] • (1948) • novelette by H. Beam Piper
• The Sub-Standard Sardines • [Magnus Ridolph] • (1949) • novelette by Jack Vance
• Tough Old Man • (1950) • novelette by L. Ron Hubbard
• Of Those Who Came • (1952) • short story by Francis G. Rayer [as by George Longdon]
• The Closed Door • (1953) • short story by Kendell Foster Crossen
• Bait • (1951) • short story by Roy L. Clough, Jr.
• Foreword (Space Police) • essay by Andre Norton
• Beep • novelette by James Blish