910 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS Equilibrium, phase, diagrams approach to formulation of solubilized and emulsi- fied systems, 187 Ethanol, nonanhydrous, in hair spray, con- ductometric testing and corrosion study of, 149 Extrusion, of cosmetic products, 893 Eyebrow pencils, extrusion of, 893 Eyesweet and color science in cosmetics, 503 Feathers, red, chemical studies of iron pig- ments of, 675 Formulation of solubilized and emulsified systems, phase equilibrium diagrams as approach to, 187 Gel structure of ointments, 289 Glyceryl monostearate, studies of physical properties of, by X-ray diffraction, differential thermal analysis, and opti- cal microscopy, 109 Guinea pigs, skin of, used as membrane in studies of effect of dimethyl sulfoxide on percutaneous absorption, 119, 163, 841 Hair, chemically modified, mechanical hys- teresis of, 395 color of, instrumental description and classification of, 595 dyeing of, function of Bandrowski's base, 141,823 dyes, See Dyes. human, quantitative study of bleaching of, 275 quantitative study of effect of depilatory solutions on, 699 red, chemical studies of iron pigments of, 675 Hair spray, nonanhydrous ethanol systems for, conductometric testing and corro- sion study, 149 Heat exchange, Votator type, some experi- ences in developing plant and process for, 245 Hexachlorophane, estimation o[, in cosmetic products, 213 with substituted ureas, antibacterial synergism of, 159 HLB of emulsifiers, titration method [or determination of, 129 Hydrolysis of monostearin in acidic medium, 7O7 Hysteresis ratio, new parameter for me- chanical measure for chemically modi- fied hair, 395 Iron pigments of red hair and feathers, chemical studies, 675 Keratin, structure of, as basis for study of mechanical hysteresis of chemically modified hair, 395 Laboratory data, easy statistical tests for, 95 Lipliner pencils, extrusion of, 893 Lipstick base, two manufacturing methods for, 521 Magnesium sulfate, used to modify bro- mate-based permanent wave neutral- izer, 849 Manuscripts, directions for preparation of, 455 Medicine, esthetic, and cosmetic chemistry, relationship between, 799 Melanin pigmentation and relationship to melanocytes, 565 Melanocytes and melanin pigmentation, 565 Metabolism of steroids by Cladosporium herbarum, 461 Metrication, 449 Microscopy, optical, studies of glyceryl monostearate, 109 Mixing and dispersion techniques, 225 Monostearin, hydrolysis of, in acidic me- dium, 707 Neutralizer for permanent waving, per- formance and mechanism of action, 849 Obituary, Powers, D. H., 349 Ointments, gel structure of, 289 Pathogenesis of acne vulgaris, 644 Perfumes, allergy from, 807 Permanent wave neutralizer, performance and mechanism of action, 849 p-Phenylenediamine in hair dyes, oxidation products of, 411 Pigments, iron, of red hair and feathers, chemical studies of, 675 dispersion of, into dry powder base com- parison between three mechanical meth- ods, 469 Plant, data, easy statistical tests for, 95 development of, for Votator heat ex- change, 245 Polymer properties influencing curl reten- tion at high humidity, 863 Powder, dry, dispersion o[ pigments into, 469 Primates, nonhuman, baldness in, 173 Products, development of, and psycho- sensory reactions, 881 testing of, importance in sphere of product development, 21 Psychosensory reactions and product de- velopment, 849 Radioactively labeled compounds, absorp- tion of, by extracted teeth, 769 Research, role of consumer studies, 37 shortcomings and importance of product testing, 21 Rheological aspects of cosmetics, 725 Skin, color of, relationship of melanocytes and melanin pigmentation, 565 guinea pig, used as membrane in studies of effect of dimethyl sulfoxide on per- cutaneous absorption, 119, 163, 841 human, changes in light of current theories of aging, 829 human, interaction of detergents with, 3

JOURNAL OF THE SOCIETXZ OF COSMETIC CHEMISTS 011 Soap, antibacterial, influence of, on various effluents from axillae, 611 toilet, antibacterial synergism in systems comprised of halogenated bisphenols and substituted ureas used as germi- cides in, 159 Society of Cosmetic Chemists, Great Britain, Annual General Meeting, 560 Annual Report of Council for 1966-67, 59 Annual Report of Council for 1967-68, Committees for 1967-68, 2 Dinner and Dance, 273 Diploma Course, 66 Hibbott Memorial Prize, 66 Officers and Council for 1967-68, 1 Program, 66, 273, 560, 767 Symposia, 66, 67, 274, 561,562, 768 Society of Cosmetic Chemists, U.S.A., Annual Report, 69 California Chapter, 350 I.F.F. Award, 828 Literature Award, 643 Medal Award, 75 Midwest Chapter, 80 New England Chapter, 81 New York Chapter, 82, 380 Seminar, 610 Solubilized systems, phase equilibrium dia- grams for, 187 Spectral analysis of oxidation dye inter- mediates, 361 Statistical tests for laboratory and plant data, 95 Steroids, metabolism of, by Cladosporium herbarum, 461 Sunscreens, biologic problems involved, 85 Surfactants, composition of, mesomorphic phases liquid crystals, 581 effect of initial location of, on viscosity of emulsions, 683 Systems, solubilized and emulsified, phase equilibrium diagrams, 187 Teeth, extracted, absorption of radioactively labeled materials by, 769 Titration method for determination of HLB's of emulsifiers, 129 Toothpaste, manufacture of, application of some experiences in developing Votator plant and process for, 245 as test product in comparison of local and national consumer panels, 881 Ultraviolet, absorption methods for estima- tion of hexachlorophane in cosmetic products, 218 erythema, and biologic problems con- cerning sunscreens, 85 radiation, natural, new results on problem of artificial light protection, 785 Ureas, substituted, and halogenated bis- phenols, antibacterial synergism in systems comprised of, 1,59 Vapors, changes in composition of, over odorous products by permeation through plastic films, 713 Viscosity of emulsions, effect of initial sur- factant locations on, 688 X-Ray diffraction studies of glyceryl mono- stearate, 109