Analog Science Fiction - Science Fact August 1993 (Vol.113, No.10)
Cover by Bob Eggleton.

Novelettes: "Hail Columbia!" by Arlan Andrews
"Burial Detail" by Grey Rollins
"Swan Song" by Gregory Bennett
Science Fact: "Old MacDonald Had a Pharm: Gene Farming and the Biopharmaceutical Revolution" by Mark S. Lesney

Stories: "When Johnny Comes Marching Home Again - and Again - and Again" by Jayge Carr
"Can You Hear What I See?" by F. Alexander Brejcha
"Invisibility" by Mark Rich.
Probability Zero: "Prisoner's Dilemma" by Jeffrey G. Liss.

Stanley Schmidt's editorial is "Upstart Instruments."