1. Zilliken, F., and Whitehouse, M. W., Adv. Carbohyd. Chem., 13, 237 (1958).
2. Barry, G. T., Science, 126, 1230 (1957).
3. Klenk, E., Chemistry and Biology of Mucopolysaccharides, 298 (Ciba Found. Symp.; J. and A. Churchill, Ltd., 1958).
4. Klenk, E., and Lempfrid, H., Hoppe-Seyl. Z., 307, 278 (1957).
5. Cook, G. M. W., Heard, D. H., and Seaman, G. V. F., Nature, 188, 1011 (1960).