Mental Energy Crisis • essay by The Editor
Hot Spot • novelette by Brenda Pearce
A Kind of Murder • [Teleportation] • shortstory by Larry Niven
Extraterrestrial Organic Matter • essay by Louis Lenhard
Do You Know Your Chemistry Terms? • essay by Joseph Stacy
The Time-Traveler • novelette by Spider Robinson
Earth, Air, Fire and Water • serial by William Walling and Stephen Nemeth
Scholarly Correspondence • shortstory by Charles Eric Maine
Mental Energy Crisis • essay by The Editor
Hot Spot • novelette by Brenda Pearce
A Kind of Murder • [Teleportation] • shortstory by Larry Niven
Extraterrestrial Organic Matter • essay by Louis Lenhard
Do You Know Your Chemistry Terms? • essay by Joseph Stacy
The Time-Traveler • novelette by Spider Robinson
Earth, Air, Fire and Water • serial by William Walling and Stephen Nemeth
Scholarly Correspondence • shortstory by Charles Eric Maine