W. LINCOLN HAWKINS (1911–1992), a pioneer in chemical engineering and the uses of plastics, was a leader in discovering the factors limiting the life of plastics and in developing life-extending additives as a practical means for conservation of materials. His work led to the invention of the synergistic system of chemical stabilization used throughout the world in the manufacture of plastic cable sheath. Dr. Hawkins’ research was of significant importance in developing ways to recycle plastics. In 1975 he was elected to membership in the National Academy of Engineering.