Contents

9 • Sea-Kings of Mars • Leigh Brackett
74 • The Alien Machine [This Island Earth] • Raymond F. Jones
89 • Mouse • Fredric Brown
95 • Like a Keepsake • John D. MacDonald
100 • White Catastrophe • Arthur J. Burks
116 • See You Later • [Hogben] • Henry Kuttner
128 • The Life-Work of Professor Muntz • Murray Leinster
135 • The Homesteader • James Blish