LANOLIN DERIVATIVES IN SHAMPOOS 793 stearyl alcohol, however, was not an acceptable additive for the shampoo system used in these studies. Because of the diversity of the lanolin derivatives, no over-all correlation could be found between performance and per cent ethylene oxide, HLB, or chemical type. However, derivative No. 16 was con- sistently a more desirable additive than No. 25, its higher ethoxylated homolog. This indicates that for this particular lipophile, a balance of 16 rather than 25 moles ethylene oxide produces a more favorable orien- tation in the bubble film. Inspection of the data confirms that the superior performance of derivative No. 16 is not simply a consequence of its numerical HLB. Other lanolin derivatives of different molecular structure have the same HLB as No. 16 but do not exhibit universally good performance properties in this shampoo system at all test condi- tions. The addition of the appropriate ethoxylated lanolin derivative at its optimum concentration can stabilize shampoo performance under a variety of use conditions. This was demonstrated by the data reported for derivative No. 16 at 2% in the shampoo used in this study. In other shampoo systems, a different lanolin derivative and/or concentration may achieve this foam stabilization effect. (Received January 31, 1969) REFERENCES (1) Bikerman, J. J., Chemistry and Physics of Interfaces, American Chemical Society Pub- lications, Washington, D.C., 1965, pp. 58-64. (2) Ross, J., and Miles, G. D., An apparatus for comparison of foaming properties of soaps and detergents, Oil Soap, 18, 99 (1941). (3) Barnett, G., and Powers, D. H., Factors contributing to the performance of shampoos and to customer acceptance, Proc. Sci. Sect. Toilet Goods Assoc., 24, 24-8 (1955). (4) New, G. E., Techniques of foam measurement, J. Soc. Cosmetic Chemists, 11, 390-414 (1960). (5) Bromley, J. M., Modern trends in the assessment of shampoos, Ibid., 15,631-9 (1964). (6) Amerchol Lanolin Derivatives, American Cholesterol Products, Inc., Edison, N.J., 1964. (7) Spangler, W. G., Dynamic foam test, J. Am. Oil Chemists' Soc., 41,300-6 (1964).

794 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS Society of Cosmetic Chemists Announces Scholarship Grants The Board of Directors of the Society of Cosmetic Chemists has announced an initial disbursement of $4500 in scholarship grants to further education in cosmetic science. Seven colleges and universities will share these funds. Recipients are: Columbia University College of Pharmaceutical Sciences, New York, N. Y., Dr. Joseph Kanig, Dean Massachusetts College of Pharmacy, Boston, Mass., Dr. Harold Silverman, Professor of Pharmacy Roosevelt University, Chicago, II1., Dr. Walter Guthman, Chair- man, Dept. of Chemistry St. John's University College of Pharmacy, Jamaica, N. Y., Dr. John Sciarra, Director, Graduate Division St. Louis College of Pharmacy, St. Louis, Mo., Dr. Joseph E. Haberle, Director of Pharmaceutical Sciences West Virginia University School of Pharmacy, Morgantown, W. Va., Dr. Paul Zanowiak, Assoc. Professor of Pharmaceutics Each of these schools presently offers at least one course on some facet of cosmetic science. The funds are to be expended at the discre- tion of the supervising faculty member indicated.