Contents (view Concise Listing)

• 6 • Invention and Imagination • [Editorial (Astounding)] • essay by John W. Campbell, Jr. [as by The Editor]
• 9 • The Luck of Ignatz • novelette by Lester del Rey
• 9 •  The Luck of Ignatz • interior artwork by Gilmore
• 16 •  The Luck of Ignatz [2] • interior artwork by Gilmore
• 25 •  The Luck of Ignatz [3] • interior artwork by Gilmore
• 32 • In Times to Come (Astounding, August 1939) • [In Times to Come (Astounding)] • essay by The Editor
• 32 • The Analytical Laboratory: June 1939 (Astounding, August 1939) • [The Analytical Laboratory] • essay by The Editor
• 33 • Heavy Planet • short story by Milton A. Rothman [as by Lee Gregor]
• 33 •  Heavy Planet • interior artwork by W. A. Koll [as by Koll]
• 41 • General Swamp, C.I.C. (Part 1 of 2) • serial by L. Ron Hubbard [as by Frederick Engelhardt]
• 41 •  General Swamp, C.I.C. (Part 1 of 2) • interior artwork by R. Isip (variant of General Swamp, C.I.C.) [as by Isip]
• 48 •  General Swamp, C.I.C. (Part 1 of 2) [2] • interior artwork by R. Isip [as by Isip]
• 57 •  General Swamp, C.I.C. (Part 1 of 2) [3] • interior artwork by R. Isip [as by Isip]
• 70 • Isotope 235 • essay by John W. Campbell, Jr. [as by Arthur McCann]
• 72 • Space War • essay by Willy Ley
• 83 • Life-Line • [Future History] • short story by Robert A. Heinlein
• 83 •  Life-Line • interior artwork by R. Isip [as by Isip]
• 96 • Brass Tacks and Science Discussions (Astounding, August 1939) • [Brass Tacks] • essay by The Editor
• 98 •  Letter (Astounding, August 1939) • essay by Mark Reinsberg
• 98 •  Letter (Astounding, August 1939) • essay by Harry Warner, Jr.
• 100 •  Letter (Astounding, August 1939) • [Letters: John W. Campbell, Jr.] • essay by John W. Campbell, Jr. [as by Arthur McCann]
• 101 • Stowaway • short story by Nelson S. Bond
• 101 •  Stowaway • interior artwork by Edd Cartier [as by Cartier]
• 112 • There's Just as Good Fish-- • essay by L. Sprague de Camp
• 113 • The Blue Giraffe • novelette by L. Sprague de Camp
• 113 •  The Blue Giraffe • interior artwork by W. A. Koll [as by Koll]
• 122 •  The Blue Giraffe [2] • interior artwork by W. A. Koll [as by Koll]
• 131 • An Ultimatum from Mars • short story by Ray Cummings
• 131 •  An Ultimatum from Mars • interior artwork by H. W. Wesso [as by Wesso]
• 139 • Pleasure Trove • novelette by P. Schuyler Miller
• 139 •  Pleasure Trove • interior artwork by W. A. Koll [as by Koll]
• 148 •  Pleasure Trove [2] • interior artwork by W. A. Koll [as by Koll]