LABORATORY MODELS FOR DEPILATORY PERFORMANCE 377 However, the factors which were most significant for speed of depilation did not necessarily have the same order of importance for irritation. Using the results obtained from the Depilometer studies together with the results of irritation studies a number of practical depilatory creams were formulated which represented different degrees of compromise between speed of action and irritation. User tests with these depilatory creams then enabled the best overall compromise to be selected. (Received: 6th September 1973) REFERENCE (1) Yablonsky, H. A. and Williams, R. A qualitative study of the effect of depilatory solutions upon hair. J. $oc. Cosmet. Chem. 19 699 (1968).

J. Soc. Cosmet. Chem. 25 379 (1974) ¸ 1974 Society of Cosmetic Chemists of Great Britain Society of Cosmetic Chemists of Great Britain x974 Medal Lecture Professor J. Ebling was the recipient of the 1974 Medal of the Society of Cosmetic Chemists of Great Britain. The Society's Medal was presented to Professor Ebling at a meeting held at the Royal Society of Arts on Thursday, 7th March 1974. In making the presentation, the President of the Society, Mr G. A. C. Pitt, expressed the great pleasure it gave the Society to honour one of its own members for the first time, in this way. Professor Ebling, who holds the chair of Zoology in the University of Sheffield, was a regular contributor to the scientific activities of the Society as well as being a major contributor to the science of dermatology. His lecture, 'Sex Hormones and the Skin', was then delivered to the meeting, and Miss Anne Young, the Vice-President of the Society, proposed a vote of thanks. Professor F. J. G. Ebling (left) receiving the Silver Medal from the Society's President, Mr G. A. C. Pitt (right) 379