1. Marquis, D. M., S. H. Sharman, R. House and W. A. Sweeney, JAOCS43, 607 (1966).
2. Odioso, R. C., Soap Chem. Spec.42, (2), 47 (1967).
3. Rubinfeld, J., and H. D. Cross III, Ibid.42 (3), 41 (1967).
4. Ranky, W. O., and G. T. Battaglini, Ibid.43, (4), 36 (1968).
5. Knight, J. D., and R. House, JAOCS36, 195 (1959).