Analog Science Fiction - Science Fact March 1991 (Vol.111, No.4)
Cover by Nicholas Jainschigg (for "Den of Sorrow.")

Novelettes: "Den of Sorrow" by Daniel Hatch ("Dens/Guy Stanger" series)
"Creative Constructions, Inc." by Kent Patterson
"Time Out of Mind" by Bob Howe
"Science Fiction" by Lawrence Watt-Evans.
Science Fact: "What Goes Around, Come Around: What to do About Space Debris?" by Dr. Gay E. Canough & Dr. Lawrence P. Lehman.

Stories: "The Day the Signals Started" by Francis Carter
"Eden Regained" by F. M. Busby
"An End to Darkness" by J. H. Ulowetz
"Summer Hopes, Winter Dreams" by Mike Moscoe.

Stanley Schmidt's editorial is "Primitive Machines."