LOMA LINDA, Calif. (Nov. 22)—Earl Warrick, a former Charles Goodyear Medal recipient and chief researcher at Dow Corning Corp., died Nov. 15 at his home in Loma Linda. He was 91. Warrick also was one of the originators of commercial silicone and invented silicone rubber, or "bouncing putty," the material that was the forerunner of the commercial product Silly Putty. The ACS Rubber Division honored him with its Charles Goodyear Medal in 1976 for his work in discovering and developing silicone rubber. He began his career at the Mellon Institute of Industrial Research, where he worked with Rob Roy McGregor in studying organosilicon chemistry. It was their work, along with that of other scientists, that helped lead to the founding of Dow Corning Corp.