vacations in Aspen, Colorado, and Jackson, Wyoming. When they could no longer ski, they made annual treks to vacation in Aspen during the summer to enjoy fly fishing and music festival concerts. They also made two trips to Scandinavia where they researched Bob’s family history; his grandfather had emigrated from Sweden in the late 19^th century. Fascinated with genealogy, he researched both his and Jo’s family histories, and his research provided valuable information to his children and grandchildren.

Bob led a very challenging but satisfying life characterized by his compassion and his devotion to excellence. He was the quintessential scientist and scholar. His influence as an educator will live on in the lives and careers of his students, and he will be remembered with respect and admiration by all of his contemporaries and colleagues.

James Robert Berg, a son, preceded Bob in death. Dr. Berg’s survivors include his wife, Jo, of Bryan, Texas, whom he met at Central High School in St. Paul, Minnesota. They were together in marriage for almost 60 years. Bob is survived by two sons: Charles, and wife Sarah, of The Woodlands, Texas, and William, and wife Theresa, of Fort Collins, Colorado, and three grandchildren, Matthew, Amanda, and Camille. Charles, a geophysicist, and William, a petroleum geologist, are fortunate to have inherited their father’s love of geology and learning. Bob was devoted to his grandchildren, and they benefited greatly from his presence in their lives.