1. E. L. Krinov, Principles of Meteoritics, Pergamon Press, New York (1960).
2. L. J. Spencer, Mineral. Mag., 19 (1951) 213.
3. B. Mason, Meteorites, Wiley, New York (1952).
4. R. S. Clarke, Unpublished.
5. J. I. Goldstein, R. E. Ogilvie, Geochim. Cosmochim. Acta, 27 (1963) 623.