RichardJ. Winzler died ofa heart attack on September 28, 1972. He was a versatile, internationally renowned biochemist, gifted with bound less energy and a great breadth of view. After early work on respiratory enzymes, he developed a lifelong in te rest in complex carbohydrates and, particularly, glycoproteins. He early recognized the important role of the latter substances in membrane function and developed the now widely accepted model for the structure of major erythrocyte membrane glyco pro teins. He expanded this model to include the possible general roles of membrane glycoproteins in...