These microscopic images were taken by my father, Dr. Earl C. Roberts, in the 1960s and 1970s. Some may have been taken when he was a professor at the University of Washington, but most likely they were taken while the chief metallurgist at the Boeing Company in Seattle. All are of metal samples of various types showing failures and crystal structures of the metals. Dad did a lot of failure analysis in his later years. Early in his career he developed a number of metal alloys including ones used in early airframe manufacture. The mixing of beryllium in those early aluminum alloys was the cause of his ultimate demise since the beryllium vapors were not controlled in the lab and he ultimately developed beryliosis (a lung disease) as a result of it. I hope you enjoy these photos. He would be thrilled to know that they could be made available in this manner. Too bad he isn't here to tell us what they all signify.