Worlds of IF - Science Fiction: December 1966 Volume 16, No. 12
Illustrations by Gray Morrow, Dan Adkins, Burns, Virgil Finlay, Jack Gaughan. Cover by Jack Gaughan.

Novelettes: "Be Merry" by Algis Budrys (I recommend this as one of his best stories)
"Starpath" by Neal Barrett, Jr.
"A Relic of the Empire" by Larry Niven ("Known Space" series)
"Call Me Dumbo" by Bob Shaw

Serial: "Snow White and the Giants" (Part 3 of 4) by J. T. McIntosh.

Stories: "The Thousandth Birthday Party" by Durant Imboden
"The Forgotten Gods of Earth" by Andrew J. Offut

Edited by Frederik Pohl; Judy-Lynn Benjamin is Associate editor. Fandom column by Lin Carter. With Pohl at the helm (who also edited the sister magazines Galaxy and Worlds of Tomorrow), the lineup of authors is starting to look like a "Who's Who" of SF. Niven's "Neutron Star" from the October, 1966 issue is the 1967 Short Story winner (and the first of 6 "Known Space" stories in a span of 7 issues.) This is the second of 3 consecutive years that IF wins the Hugo award for "best magazine" (in 1966, 1967 and 1968 - each for the previous year.)