1. R. G. Glasser, N. Seeman andG. A. Snow:Nuovo Cimento,7, 142 (1958). (hereafter called I).
2. M. Ceccarelli:Proc. of the Rochester Conference (New York, 1957). See alsoE. Lohrmann, M. Nicolić, M. Schneeberger, P. Waloschek andH. Winzeler:Nuovo Cimento,7, 163 (1958).
3. G. A. Snow:Proc. of the Rochester Conference (New York, 1957).
4. M. Gell-Mann andA. Rosenfeld:Ann. Rev. of Nucl. Sci. (Palo Alto, California, 1957), p. 411.
5. L. W. Alvarez, H. Bradner, P. Falk-Vairant, J. D. Gow, A. H. Rosenfeld, F. L. Solmitz andR. D. Tripp:Nuovo Cimento,5, 1026 (1957); andA. H. Rosenfeld:Report on Rochester Conference (1957).