1. Ogston, A. G., Nature, 162, 963 (1948).
2. Levy, H. R., Talalay, P., and Vennesland, B., Progress in Stereochemistry (edit. by de la Mare, P. B. D., and Klyne, W.), 3, 299 (1962); Cornforth, J. W., and Ryback, G., Ann. Rep., 428 (1965); Arigoni, D., and Eliel, E. L., in Topics in Stereochemistry (edit. by Eliel, E. L., and Allinger, N. L.), 4 (in the press).
3. Halevi, E. A., in Prog. Phys. Org. Chem. (edit. by Cohen, S. G., Streitwieser, jun., A., and Taft, R. W.), 1, 109 (1963). and references cited therein.
4. Müllhofer, G., and Rose, I. A., J. Biol. Chem., 240, 1341 (1965). and references cited therein.
5. Johnson, C. K., Gabe, E. J., Taylor, M. R., and Rose, I. A., J. Amer. Chem. Soc., 87, 1802 (1965).