278 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS (47) Rolla, G., Loe, H. and Rindom Schiott, C. The affinity of chlorhexidine for hydroxyapatite and salivary mucins. J. Periodontal Res. 5 90 (1970). (48) Bird, M. E. and Senior, N. ICI Pharmaceuticals Division. Unpublished work. (49) Manly, R. S. A structureless recurrent deposit on teeth. J. Dent. Res. 22 479 (1943). (50) Wilkinson, J. B. and Pugh, B. R. Toothpastes--cleaning and abrasion. J. Soc. Cosmet. Chem. 21 595 (1970). (51) Gjermo, P. and Rolla, G. Plaque inhibition by antibacterial dentifrices. $cand. J. Dent. Res. 78 464 (1970). (52) Davies, R. M., Borglum Jensen, S., Rindom Schiott, C. and Loe, H. The effect of topical application of chlorhexidine on the bacterial colonization of the teeth and gingiva. J. Periodontal Res. 5 96 (1970). (53) Lindhe, J., Heyden, G., Svanberg, G., Loe, H. and Rindom Schiott, C. Effect of local applications of chlorhexidine on the oral mucosa of the hamster. J. Periodontal Res. 5 177 (•970).

J. Soc. Cosmet. Chem. 24 279 (1973) ¸ 1973 Society of Cosmetic Chemists of Great Britain IFSCC Award Dr K. D. Bingham (left) and Dr A. Shaw, the recipients of the IFSCC award for their paper 'Male Pattern Baldness and the Metabolism of Androgens by Human Scalp Skin', presented at the 7th IFSCC Congress in Hamburg on the 13th September, 1972.