Contents (view Concise Listing)

• vii • Introduction (Beachheads in Space) • (1952) • essay by August Derleth
• 3 • The Star • (1952) • short story by David H. Keller, M.D. [as by David H. Keller]
• 25 • The Man from Outside • [Quarantine] • (1951) • short story by Jack Williamson
• 41 • Beachhead • short story by Clifford D. Simak [as by Clifford Simak]
• 60 • "The Years Draw Nigh" • (1951) • short story by Lester del Rey
• 74 • Metamorphosite • (1946) • novella by Eric Frank Russell
• 131 • The Ordeal of Professor Klein • short story by L. Sprague de Camp
• 141 • Repetition • [Rull] • (1940) • novelette by A. E. van Vogt (variant of The Gryb)
• 169 • Breeds There a Man ... ? • (1951) • novelette by Isaac Asimov
• 205 • Meteor • (1952) • novelette by John Wyndham [as by John Beynon Harris]
• 221 • And the Walls Came Tumbling Down ... • (1951) • short story by John Wyndham (variant of And the Walls Came Tumbling Down)
• 238 • The Blinding Shadows • (1934) • short story by Donald Wandrei
• 253 • The Metamorphosis of Earth • (1951) • novelette by Clark Ashton Smith
• 281 • The Ambassadors from Venus • (1952) • novelette by Kendell Foster Crossen
• 307 • To People a New World • (1950) • short story by Nelson S. Bond [as by Nelson Bond]