1. Odum, Eugene P., and Golley, Frank B., in Radioecology (edit. by Schultz, Vincent, and Klements, Alfred W.), 403 (Reinhold, New York, 1963).
2. Brown-Grant, K., von Huler, C., Harris, G. W., and Reichlin, S., Physiologist, 154, 1 (1954).
3. Fish, W. A., Carlin, H., and Hickey, F. C., Endocrinology, 51, 282 (1952).
4. Christian, J. J., in Physiol. Mamm. (edit. by Mayer, W. V., and Van Gelder, P. G.), 1, 189 (Academic Press, New York, 1963).
5. Verzar, F., Sailer, F., and Vidovic, V., J. Endocrinol., 8, 308 (1952).