1. Ferguson, L. N., and Lawrence, A. R., J. Chem. Ed., 35, 435 (1958).
2. Lawrence, A. R., and Ferguson, L. N., Nature, 183, 1469 (1959).
3. Cameron, A. T., Trans. Roy. Soc. Canad., 37, 11 (1943).
4. Cameron, A. T., Sci. Rep. No. 9, 44 (Sugar Research Found., Inc., New York, 1947).
5. Roessler, E. G., Baker, G. A., and Amerine, M. A., Food Research, 21, 117 (1956).