1. Schoenborn, B. P., Watson, H. C., and Kendrew, J. C., Nature, 207, 28 (1965).
2. Schoenborn, B. P., and Nobbs, C. L., J. Mol. Pharmacol., 2, 491 (1966).
3. Kretsinger, R. H., Watson, H. C., and Kendrew, J. C., J. Mol. Biol. (in the press).
4. Parrish, R. G., and Kendrew, J. C., Proc. Roy. Soc., A, 238, 305 (1956).
5. Kendrew, J. C., Watson, H. C., Strandberg, B. E., Dickerson, R. E., Phillips, D. C., and Shore, V. C., Nature, 190, 666 (1961).