124 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS formed through hydrolysis and comparing it to that theoretically available. A maximum of 0.4 per cent hydrolyzable material was found after 36 months. Free fatty acid was also determined and showed an increase of only 0.25 per cent. Lanolin itself shows an increase of 3.0 per cent. ... '• ' .':•::"..7' .: :s'":-' ' .... ? • . ½ ., • '.:.' . :. '.:::• :': ß ..'•:-..• . :.:• '{:..: .... ..' .5{•..:•-. • . ß ..... .... ß . . Presentation of a service plaque to Past Chairman Theodore Ostrowski by retiring Chairman, John Longfellow of the New York Chapter In a typical soap emulsion containing 4 per cent of the acetylated lanolin derivatives, the change in pH was used as a measure of hydrolysis. A formulation with 4 per cent acetylated monoglyceride was included for comparison. Room temperature and elevated temperature aging showed minor pH changes for the acetylated lanolin derivatives, and a drop of 2.5 pH units for acetylated monoglycerides. The paper was presented at the Annual President's Night of the Chapter National President H. J. Amsterdam installed the new officers for 1961-- Saul Bell, Chairman Martin Katz, Chairman-Elect Agnes Korte, Secretary and Robert J. Schiraldi, Treasurer.

JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS 125 NEW MEMBERS Atherton, James G., 129 Mohave St., Roselle, Ill. Barr, Dr. Martin, 710 Thomas Rd., Cheltenham, Pa. Beekman, Stewart M., 27 Dale Dr... Chatham, N.J. Biesel, Duane M., 1348 E. 87th St.. Chicago, Ill. Brown, Herman, 608 Warwick Ave., Teaneck, N.J. Depeder, Martha F., 544 West 32nd St., Chicago, Ill. Doca, Frank D., Beach Park Rd., Clinton, Conn. Dugan, Michael A., 20 Sheridan Ave., Metuchen, N.J. Low, Pamela, 51 Pleasant St., Wakefield, Mass. Shiman, Paul J., 1818 West Greenleaf Ave., Chicago 26, Ill. NOTICE Members of the Society may borrow books from the library at The Chemists' Club, 52 East Forty-first Street, New York. The library is located on the mezzanine and open Monday through Friday, 9:00 a.m. to $:00 p.m.