Volume 2, Number 4, Summer 1991
"Thigmomorphogenesis--Plant Stress as a Cultivation Technique," by Kathleen Yeomans
"Surfless and Turfless: A New Wave in Integrated Food Production," by Paul Przybylowicz
"Bioponics Part IV," by Dr. Luther Thomas
"Good Vibrations--A “Sound” Diet for Plants," by Michael Spillane
"Drip Irrigation--The Basics," by Tom Bressan
"New Efficiency for Home Lighting," by Bill Lermer