1. Rigby, B. J., Hirai, N., Spikes, J. D., and Eyring, H., J. Gen. Physiol., 43, 265 (1959).
2. Rigby, B. J., and Spikes, J. D., Nature, 187, 150 (1960); 188, 1120 (1960).
3. Dumitru, E. T., and Garrett, R. R., Arch. Biochem. Biophys., 66, 245 (1957).
4. Bowes, J. H., Elliott, R. G., and Moss, J. A., Nature and Structure of Collagen, edit. by Randall, J. T., 204 (Academic Press, New York, 1953).
5. Neuman, R. E., Ph.D. thesis, University of Cincinnati (1949).