1. Svedberg, T., and Pedersen, K. O., The Ultracentrifuge, 406 (Clarendon Press, Oxford, 1940).
2. Cohn, E. S., and Edsall, J. T., Proteins, Amino Acids and Peptides, 428 (Reinhold Publ. Co., New York, 1943).
3. Edsall, J. T., in The Proteins (edit. by Neurath, H.), 113, chap. 7 (Academic Press, New York, 1953).
4. Gosting, L. T., Adv. Protein Chem., 11, 429 (1956).
5. Strassburger, J., and Reinert, K. E., Jena Rev., 3, 188 (1969).