1. Lovelock, J. E., Nature, 189, 727 (1961).
2. Fitsch, J. M., Layloff, T. P., and Adams, R. N., J. Amer. Chem. Soc., 87, 1724 (1965).
3. Adams, G. E., and Dewey, D. L., Biochem. Biophys. Res. Commun., 12, 473 (1963).
4. Adams, G. E., in Current Topics in Radiation Research (edit. by Ebert and Howard), 37 (North-Holland Pub. Co., 1967).
5. Adams, G. E., and Michael, B. D., in Energetics and Mechanisms in Radiobiology (Academic Press, London, in the press).