JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS 495 Rader, Charles A., Recent Developments in Surface Physics of Interest to Cosmetic Science, 247 Randebrock, Rudolf, Electron Microphoto- graphs of Human Hair, 404 Randebrock, Rudolf, Elektronenmikroskop- ische Aufnahmen des menschlichen Haares, 404 Reed, Raymond E., The Definition of "Cos- meceutical," 103 Rieger, Martin M., Modification of the Water Holding Capacity of Callus by Pretreatment with Additives, 263 'Root, Morris J., Importance of pH in Anhy- drous Aerosol Hair Spray Systems, 300 I Rowe, V. K., Toxicological Properties of Several Commercially Available Surfac- rants, 469 I Schmidt, C., Evaluation of Hair Dyes Using Photoelectric Colorimetry, 449 I Schwartz, Anthony M., Recent Develop- ments in Surface Physics of Interest to Cosmetic Science, 247 Seher, Artur, Chromatographische Analysen- Verfahren in Wissenschaft und Betrieb- skontrolle, 385 Seher, Artur, Chromatography in the Labo- ratory and in Quality Control, 385 Silson, John, Pregnenolone Acetate--A Dermatologically Active Steroid, 129 Tarrant, C., Production and Properties of Glass Containers, 15 Tassoff, James A., Modification of the Water Holding Capacity of Callus by Pretreat- ment with Additives, 263 Truax, H. M., Statistical Approach to Com- mon Variables in Emulsion Preparation, 437 Walter, George R., Chemical Structure and Antimicrobial Activity of Bis-Phenols, II. Bactericidal Activity in the Presence of an Anionic Surfactant, 477 Weinberg, Eugene D., Mechanisms of Action of Antibacterial Substances, 89 Wheatley, Victor R., Acceptance of The Special Award, 315

SUBJECT INDEX TO VOLUME XIII Abbaubarkeitsprufung, Probleme des biolo- gischen Abbaus industriell verwendeter Detergentien und die Methodik der, Wilhelm Husmann, 416 k•,-Absorbers, Ultraviolet, John M. Knox, 119 Acceptance of The Special Award, Victor R. Wheatley, 315 Accepted Colorants for Use in Cosmetic Products, Report Concerning the Issue of a List of, 379 Acetate--A Dermatologically Active Steroid, Pregnenolone, John Silson, 129 Aerosol Hair Spray Systems, Importance of pH in Anhydrous, Morris J. Root, 300 Aluminum Containers, Protective Lacquer Systems for, C. E. Morris, 2 Analysen-Verfah•en in Wissenschaft und Betriebskontrolle, Chromatographische, Artur Seher, 385 Analysis of Household Detergents, Some Aspects of the, D.C. Cullum, 348 Anhydrous Aerosol Hair Spray Systems, Importance of pH in, Morris J. Root, 300 Artionic Surfactant, II. Bactericidal Activ- ity in the Presence of an, Chemical Struc- ture and Antimicrobial Activity of Bis- Phenols, George R. Walter, and William S. Gump, 477 Antibacterial Substances, Mechanisms of Action of, Eugene D. Weinberg, 89 An timicrobial Ac tivi ty of Bis-Phenols, Chem- ical Structure II. Bactericidal Activity in the Presence ooe an Artionic Surfactant, George R. Walter, and William S. Gump, 477 Association Reactions of Polyethylene Gly- cols and Derivatives, Charles E. Colwell, and Samuel M. Livengood, 201 v"Azo Dyes, A Systematic Method for Identi- fication of Food, Drt•g and Cosmetic, Jos• M. Plfi-Delfina, 215 Bactericidal Activity in the Presence of an Artionic Surfactant, Chemical Structure and Antimicrobial Activity of' Bis-Phenols, II., George R. Waiter, and William S. Gump, 477 Bacteriostats lie Added to Toilet Soaps, Should, W. M. Linfield and R. E. Casely, 81 Betriebskontrolle, Chromatographische Anal- vsen-Verfahren in Wissenschaft und, Artur geher, 385 Biological Activity in Cosmetics, The Open Problem of, Emil G. Klarmann, 65 Bis Phenols, Chemical Structure and Anti-I microbial Activity of, II. Bactericidall Activity in the Presence of an Anionici Surfactant, George R. Walter, and Williamt S. Gump, 000 Book Reviews Medicinal Chemistry, 111 Occupational Diseases of the Skin, 1111 The Encyclopedia of the Biologicall Sciences, 112 • Industrial Hygiene and Toxicology, Vol. I, 112 Eczematous Allergy to Balsams, 112 X-The Chemical Formulary, xv Physical Methods in Chemical Analysis, 141 Perfumes and Flavors Spectra, 141 Studies on the Technique of Skin Testing in Allergy, 142 Reagent Chemicals and Standards, 142 Synthetic Methods of Organic Chemis- try, 143 Keratin and Keratinization, 143 Radioactive Tracers in Chemistry and Industry, 251 x•/Pharmaceutical Analysis, 319 Organic Chemistry of Bivalent Sulfur, 319 Angewandte Chemie, 372 Dictionary of Commercial Chemicals, • 483 Encyclopedia of Chemical Technology, 483 '• The Condensed Chemical Dictionary, 483 x/ Water-Soluble Resins, 484 •/ Creativity and Innovation, 484 Standard Methods of Chemical Analysis, 485 Surface Activity, 486 v-' A Manual of Cosmetic Analysis, 486 • Fundamental Principles of Bacteriology, 488 The Behavior of Plasticizers, 488 Quantitative Methods in Pharmacology, 488 Introduction to Colloid Chemistry, 489 •d New Hope for Your Hair, 489 Advances in Applied Microbiology, 490 The Chemistry and Technology of Edi- ble Oils and Fats, 490 Synthetic Methods of Organic Chemis- try, 490 I,ipide Chemistry, 491 496