BIGGS--Barton. We mourn the passing of a friend dear to us and so many. His talent and breath of knowledge were recognized throughout the world. This is wonderfully expressed by an email we received: "What an enormous loss for the world that both knew him up close, and that followed him from afar." With Barton, the closer you got to him, the better he was. We extend our deepest sympathies to his family. John and Betty

Published in The New York Times on July 18, 2012