Contents (view Concise Listing)

• 2 • Unimaginable Reasons • [Editorial (Astounding)] • (1960) • essay by John W. Campbell, Jr. [as by The Editor]
• 4 • The High Crusade (Part 1 of 3) • (1960) • serial by Poul Anderson
• 40 • The Troublemaker • [Federation of Humanity] • (1960) • short story by Christopher Anvil
• 54 • The Brotherhood of Keepers • (1960) • novelette by Dean McLaughlin
• 92 • Dust Rag • (1956) • short story by Hal Clement
• 107 • Beyond the Phyla • [Science Fact (Astounding)] • (1960) • essay by Isaac Asimov
• 122 • The Reference Library (Astounding/Analog, July 1960) • (1960) • essay by P. Schuyler Miller
• 122 •   Review: The Sea People by Adam Lukens • review by P. Schuyler Miller
• 122 •   Review: The Secret of the Ninth Planet by Donald A. Wollheim • review by P. Schuyler Miller
• 123 •   Review: The Star Conquerors by Ben Bova • review by P. Schuyler Miller