of the DOE ECUT Tribology Program have at the same time sponsored a major Tribology program at NBS. That program also benefited from the studies conducted by Mr. Gates, Mr. Yellets, and Mr. Deckman. These students, while not working on sponsored projects directly, enabled NBS to explore some high risk, high pay off projects parallel to ECUT projects. When appropriate, the students were supported by ECUT for some time. To this, we gratefully acknowledge the generous support of DOE ECUT, without whose support many ideas would not be explored.