1. Swift, H., in The Molecular Control of Cellular Activity (McGraw-Hill, New York, 1962).
2. Palay, S. L., and Claude, A., J. Exp. Med., 89, 431 (1959).
3. Ris, H., in The Chemical Basis of Heredity (Oxford Univ. Press, London, 1957).
4. Kornberg, A., in The Chemical Basis of Heredity (Oxford Univ. Press, London, 1957).
5. Venkataraman, P. R., Biochim. Biophys. Acta, 39, 352 (1960).