 One possible focus was the history of instrumentation.As early as 1989, the Beckman Center had requested the loan or gift of Beckman Instruments such as the Beckman pH meter and the DU spectrophotometer for display at the Center.Some of those instruments were included in an instrumentation exhibition organized by W. Richard Howe of the University of Pittsburgh for the Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy (PITTCON) in 1994, and expanded in 1999.