9,08 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS (7) (9) (10) (u) (i3) (i4) (i5) (16) 07) (is) (i9) (23) (24) (25) ½6) ½7) (28) (29) (30) (3i) (32) (33) Onken, H. D., and Moyer, C. A., The water barrier in human epidermis, Arch. Dermatol., 87, 584 (1963). Berenson, G. S., and Burch, G. E., Studies of diffusion of water through dead human skin, Arner. J. Trop. Med., 31, 849. (1951). Blank, I. H., Cutaneous barrier, J. Invest. Dermatol., 45, 249 (1965). Scheuplein, B. J., and Blank, I. H., Permeability of the skin, Physiol. Be,)., 51, 702 (i97i). Baker, H., and Kligman, A.M., Measurement o[ transepidermal water loss by elec- trical hygrometry, Arch. Dermatol., 96, 441 (1967). Burch, G. E., and Winsor, T., Rate of insensible perspiration locally through living and dead human skin, Arch. lntern. Med., 74, 437 (1946). Singer, E. J., and Vinson, L. J., The water-binding properties of skin, Proc. Sci. Sect. Toilet Goods Ass., 46, 29 (1966). Mali, J. W. H., The transport of water through the human epidermis, J. Invest. Dermatol., 27, 451 (1956). Matoltsy, A. G., Downes, A.M., and Sweeney, T. M., Studies of the epidermal wa- ter barrier. Part 2. Investigation of the chemical nature of the water barrier, Ibid., 50, 19 (1968). Wurster, D. E., and Kramer, S. F., Investigations of some factors influencing per- cutaneous absorption, J. Pharm. Sci., 50, 288 (1961). Buettner, K., Diffusion of water vapor through small areas of human skin in a normal environmeut, J. Appl. Physiol., 14, 269 (1959). Burch, G. E., and Winsor, T., Diffusion of water through dead plantar, palmar and dorsal human skin and through toe nails, Arch. Dermatol., 53, 39 (1944). De Long, C. W., Thompson, R. C., and Kornberg, I5. A., Percutaneous absorption of tritimn oxide, Amer. J. Roentgenol., Radium Ther. Nucl. Med., 71, 1038 (1954). Scheuplein, R. J., Mechanism of percutaneous absorption. I. Routes of penetration and the influence of solubility, J. Invest. Dermatol, 45, 334 (1965). Spruit, D., and Malten, K. E., Epidermal water-barrier formation after stripping of normal skin, 1bid., 45, 6 (1965). Cronin, E., and Stoughton, R. B., Percutaneous absorption. Regional variations and the effect of hydration and epidermal stripping, Brit. J. Dcrmatol., 74, 265 (1962). Vickers, C. F. H., Existence of a reservoir in the stratum comeurn, Arch. Dermatol., 88, 20 (1963). Fox, C., Tassoff, J. A., Bieger, M. M., and Deem, D. E., Modification of the water- holding capacity of callus by pretreatment with additives, J. Soc. Cosmet. Chem., iS, •.63 (1962). WursteL D. E., and Munies, I4., Factors influencing percutaneous absorption of methyl ethyl ketone, J. Pharm. Sci., 54, 554 (1965). Idson, B., Biophysical factors in skin penetration, ]. Soc. Cosmet. Chem., 22, 615 (1971). Fritsch, W. F., and Stoughton, B. B., The effect of temperature and humidity on the penetration of C" acetylsalicylic acid in excised human skin, J. Int•esC Derrnatol., 41, 307 (1963). Scheuplein, B., and Boss, L., Effects of surfactants and solvents on the permeability of the epidermis, J. Soc. Cosmet. Ghem., 21, 853 (1970). McKenzie, A. W., and Stoughton, B. B., Method for comparing percutaneous ab- sorption of steroids, Arch. DermatoL, 86, 608 (1962). Hall-Smith, S. P., "Polythene" coverings in dermatological treatment, Br•t. Med. J., •, 1233 (1962). Sulzberger, M. B., and Witten, V. H., Thin plastic films in topical dermatologic ther- apy, Arch. Dermatol,, 84, 1027 (1961). Witten, V. H., Stein, S. J., and Michaelides, P., Use of thin pliable film in selected dermatoses, Ibid., 87, 458 (1963). Jacobi, O., Hygroscopic properties and the wettability of keratin materials, Kolloid- Z., 114, 88 (1949).

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