The cover design indicates the volcanic nature of the high mesa area as related to lower Mojave Desert playas and Cane Springs on the Nevada Test Site. In addition to serving as a statement of the status of research on associated problems, hopefully this document will assist in evaluation and guidance for future efforts and priorities for environmental transuranics investigations, reaching toward a better environment for man. Mary G. White Scientific Program Manager Nevada Applied Ecology Group Paul B. Dunaway Chairman, Steering Committee Nevada Applied Ecology Group ~~ ome Historical Review vi