Contents (view Concise Listing)

• vii • Introduction (The 1972 Annual World's Best SF) • (1972) • essay by Donald A. Wollheim
• 1 • The Fourth Profession • (1971) • novelette by Larry Niven
• 49 • Gleepsite • (1971) • short story by Joanna Russ
• 55 • The Bear with the Knot on His Tail • [Stardust (Stephen Tall)] • (1971) • novelette by Stephen Tall
• 93 • The Sharks of Pentreath • (1971) • short story by Michael G. Coney
• 109 • A Little Knowledge • [Technic History] • (1971) • novelette by Poul Anderson
• 131 • Real-Time World • (1971) • novelette by Christopher Priest
• 161 • All Pieces of a River Shore • (1970) • short story by R. A. Lafferty
• 177 • With Friends Like These ... • (1971) • novelette by Alan Dean Foster
• 199 • Aunt Jennie's Tonic • (1971) • short story by Leonard Tushnet
• 219 • Timestorm • (1971) • short story by Eddy C. Bertin (trans. of Tijdstorm)
• 239 • Transit of Earth • (1971) • short story by Arthur C. Clarke
• 253 • Gehenna • (1971) • short story by Barry N. Malzberg [as by Barry Malzberg]
• 259 • One Life, Furnished in Early Poverty • (1970) • short story by Harlan Ellison
• 275 • Occam's Scalpel • (1971) • novelette by Theodore Sturgeon