Participants at the 1955 Gordon Conference on "High Pressure Research & Techniques" which include A. Michels, E. Whalley, B. Vodar, R.L. Savage, R. Mills, D.H. Newhall, W.H. Merrill, H.G. Drickamer, and R. Dunn. I would like to thank Jeff Carroll (Gordon Research Conferences) for providing me with this photograph.