1. Feuge, R. O., J. Am. Oil Chem. Soc.,24, 49–52 (1947).
2. Feuge, R. O., and Bailey, A. E., —Ibid.,23, 259–264 (1946).
3. Hilditch, T. P., and Rigg, J. G., J. Chem. Soc.,1935, 1774–78.
4. Hilditch, T. P., and Rigg, J. G. (to Imperial Chemical Ind.), U. S. Pat. 2,073,797 (1937).
5. Richardson, A. S., and Eckey, E. W. (to The Procter and Gamble Company), U. s. Pat. 2,251,693 (1941).