1. THE UTILIZATION OF CYSTEINE AND CYSTINE BY RAT LIVER WITH THE PRODUCTION OF HYDROGEN SULFIDE
2. Scott, W. W., Standard methods of chemical analysis, New York, 5th edition, 1, 913 (1939).
3. NOTE.
4. SULFUR IN PROTEINS
5. Shriner, R. L., and Fuson, R. C., The systematic identification of organic compounds, New York, 2nd edition, 204 (1940).