Studies involving longevity and vitality of seeds after subjection to certain environmental conditions are both numerous and include many species of seeds. When stored under laboratory room conditions, year-to-year plant-Lngs are required to maintain adequate quantities of viable soybean seeds for the basic genetics laboratories. Begun in 1971, this study was under-taken for the purpose of investigating the role of temperature in maintaining high germination percentages in seeds subjected to an extended period of storage.