1. Dervichian, D. G., Fournet, G., and Guinier, A., C.R. Acad. Sci., Paris, 224, 1848 (1947).
2. Boyes-Watson, J., Davidson, E., and Perutz, M. F., Proc. Roy. Soc., A, 191, 83 (1947).
3. Roughton, F. J. W., Amer. J. Physiol., 143, 609 (1945).
4. Perutz, M. F., Trans. Farad., Soc, 42 B, 187 (1946).
5. Randall, J. T., "The Diffraction of X-Rays by Amorphous Solids, Liquids and Gases" (London, 1934).