1. 1) Hall, H. T.: Rev. Sci. Instr., 29, 267 (1958).
2. 2) Vereschagin, L. F.: Progress in Very High Pressure Research. Proc. of a Conference at Bolton Landing, Lake Geoge, N. Y., June 1960; John Wiley and Sons, New York (1961).
3. 3) von Platen, B.: Modern Very High Pressure Techniques, 118. Butterworths, London (1962).