498 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS The Prevention of Hazards from Chronic Toxicity of Cosmetics and Toilet Preparations, 322 Prbvention des risques de toxicit• chronique pourant r•sulter de l'emploi des cosmetiques et produits de toilette, 332 Die Verhutung chronisch-toxischer Ge.- fahren yon Kosmetika, 340 Evaluation of Hair Dyes Using Photoelectric Colorimetry, J. Callison, C. Schmidt, R. Piel, S. Grant, and W. Holland, 449 \/'Eye Irritation Tests, Interpretation of, John H. Kay, and Joseph C. Calandra, 281 Flexible Packs, F. W. Noble, 42 Flow Gas Cell--An Inexpensive Geiger- Mueller Detector, The, M. F. Nelson, Jr., 125 Food, Drug, and Cosmetic Azo Dyes, A Systematic Method for Identification of, Jos• M. Plfi-Delfina, 215 Gas Cell--An Inexpensive Geiger-Mueller Detector, The Flow, M. F. Nelson, Jr., 125 Geiger-Mueller Detector, The Flow Gas Cell --An Inexpensive, M. F. Nelson, Jr., 125 German Society of Cosmetic Chemists, Wolfgang Eckardt, 434 Gesellschaft Deutscher Kosmetik-Chemiker, Die, 1961-1962, Wolfgang Eckardt, 434 Glass Containers, Production and Properties of, C. Tarrant, 15 Glycerol in Skin Hydration, The Role of, K. Laden, 455 Great Britain, Society of Cosmetic Chemists of, 1, 56, 58, 321 Presidential Badge, 381 Diploma Course, 382 1962/63 Programme, 382 List of Council and Officers, 384 Haares, Elektronenmikroskopische Aufnah- men des menschlichen, Rudolf Rande- brock, 404 Hair Dyes Using Photoelectric Colorimetry, Evaluation of, J. Callison, C. Schmidt, R. Piel, S. Grant, and W. Holland, 449 Hair, Electron Microphotographs of Human, Rudolf Randebrock, 404 Hair Spray Systems, Importance of pH in Anhydrous Aerosol, Morris J. Root, 300 Hair Waving Properties of 2,5-Dimercapto- adipic Acid, Preparations and, P. Finkel- stein, Du Yung Hsiung, and L. E. DeMytt, 253 Hazards from Chronic Toxicity of Cosmetics and Toilet Preparations, The Prevention of, 322 Human Horny Layers, The Cementing Sub- stance of, Peter Flesch, 113 Hydration, The Role of Glycerol in Skin, K. Laden, 455 Hydrogen Peroxide, The Compatibility of I.anolin Derivatives with Dilute, I.. I. Conrad, and A. P. Mentecki, 362 Identification of Food, Drug, and Cosmeticl Azo Dyes, A Systematic Method for,I Jos• M. Plfi-Delfina, 215 Importance of pH in Anhydrous Aerosoll Hair Spray Systems, Morris J. Root, 300 I Industrial Detergents and Test Methods,I Problems of the Disposal of, Wilhelml Husmann, 416 Industriell verwendeter Detergentien undl die Methodik der Abbaubarkeitsprufung,I Probleme des biologischen Abbaus, WiLl helm Husmann, 416 International Cooperation of the Cosmetici Chemists, The, Ludwig-Wilhelm Masch,[ 426 ß International Federation of Societies off Cosmetic Chemists, 373-378 Internationale Zusammenarbeit der Kos-• metik-Chemiker, Die, LudwigoWilhelm• Masch, 426 Interpretation of Eye Irritation Tests, Johnl H. Kay, and Joseph C. Calandra, 281 Ion Exchange Resins and Their Applicationsl to Drug and Cosmetic Products, Robertl W. Percival, 291 Irritation Tests, Interpretation of Eye, John l H. Kay, and Joseph C. Calandra, 281 Japanese Society of Cosmetic Chemists, 3181 Kosmetik-Chemiker, Die internationale Zu-• sammenarbei t der, Ludwig-Wilhelm Masch, ] 426 Kosmetika, Die Verhutung chronisch-tox-• ischer Gefahren yon, 340 Laboratory and in Quality Control, Chroma-I tography in the, Artur Seher, 385 Lacquer Systems for Aluminium Containers, Protective, C. E. Morris, 2 Lanolin Derivatives with Dilute Hydrogen Peroxide, The Compatibility of, L. I. Conrad and A. P. Mentecki, 362 Mechanisms of Action of Antibacterial Sub- stances, Eugene D. Weinberg, 89 Medal Award, The Twelfth, 97 Microphotographs of Human Hair, Electron, Rudolf Randebrock, 404 Modification of the Water Holding Capacity of Callus by Pretreatment with Additives, Charles Fox, James A. Tassoff, Martin M. Rieger, and Donald E. Deem, 263 New Drugs and The Cosmetic Chemist,, Earl L. Meyers, 459 New England Chapter News, 108 New York Chapter News, 109 Open Problem of Biological Activity in' Cosmetics, The, Emil G. Klarmann, 65 pH in Anhydrous Aerosol Hair Spray Sys- tems, Importance of, Morris J. Root, 300 Photoelectric Colorimetry, Evaluation of l Hair Dyes Using, J. Callison, C. Schmidt, R. Piel, S. Grant, and W. Holland, 449 Physics of Interest to Cosmetic Science, Recent Developments in Surface, Anthony M. Schwartz, and Charles A. Rader, 247

JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS 499 IPolyethylene Glycols and Derivatives, Asso- ciation Reactions of, Charles E. Colwell, and Samuel M. Livengood, 201 l Pregnenolone Acetate--A Dermatologically Active Steroid, John Silson, 129 IPreparation and Hair Waving Properties of 2,5-Dimercaptoadipic Acid, P. Finkelstein, Du Yung Hsiung, and L. E. DeMytt, 253 [Pr&ention des risques de toxicitb chronique pouvant r•sulter de l'emploi des cos- metiques et prodtilts de toilette, 332 IPrevention of Hazards from Chronic Toxicity of Cosmetics and Toilet Preparations, 322 IProbleme des biologischen Abbaus industriell verwendeter Detergentien und die Meth- odik der Abbaubarkeitsprufung, Wilhelm Husmann, 416 IProblems of the Disposal of Industrial Detergents and Test Methods, Wilhelm Husmann, 416 [Production and Properties of Glass Con- tainers, C. Tarrant, 15 I Protective Lacquer Systems for Aluminium Containers, C. E. Morris, 2 I Quality Control, Chromatography in the Laboratory and in, Artur Seher, 385 I Raymond E. Reed, Man and Scientist, Milton Harris, 99 IRecent Developments in Surface Physics of Interest to Cosmetic Science, Anthony M. Schwartz and Charles A. Rader, 247 /Reed, Raymond E., Man and Scientist, Milton Harris, 99 Report Concerning the Issue of a List of Accepted Colorants for Use in Cosmetic Products, 379 I Role of Glycerol in Skin Hydration, The, K. Laden, 455 . Second Congress, International Federation of Societies of Cosmetic Chemists, 373 Should Bacteriostats be Added to Toilet Soaps, W. M. Linfield, and R. E. Casely, 81 Skin Hydration, The Role of Glyceroi in, K. Laden, 455 Soaps, Should Bacteriostats be Added to Toilet, W. M. Linfield, and R. E. Casely, 81 Society of Cosmetic Chemists of Great Britain, 1, 56, 58, 321 Presidential Badge, 381 Diploma Course, 382 1962/63 Programme, 382 List of Council and Officers, 384 Some Aspects of the Analysis of Household Detergents, D.C. Cullum, 348 Special Award, Acceptance of The, Victor R. Wheatley, 315 Special Award, The Eighth, 310 Statistical Approach to Common Variables in Emulsion Preparations, F. R. Benson, W. C. Griffin, and H. M. Truax, 437 Steroid, Pregnenolone Acetate--A Derma• tologically Active, John Silson, 129 Surface Physics of Interest to Cosmetic Science, Recent Developments in, Anthony M. Schwartz, and Charles A. Rader, 247 Surfactant, II. Bactericidal Activity in the Presence of an Anionic, Chemical Structure and Antimicrobial Activity of Bis-Phenols, George R. Walter, and William S. Gump, 477 Surfactants, Toxicological Properties of Several Commercially Available, K. J. Olson, R. W. Dupree, E. T. Plomer, and V. K. Rowe, 469 Systematic Method for Identification of Food, Drug, and Cosmetic Azo Dyes, A, Jos• M. Plfi•Delfina, 215 Test Methods, Problems of the Disposal of Industrial Detergents and, Wilhelm Hus- mann, 416 Tests Interpretation of Eye Irritation, John H. Kay and Joseph C. Calandta, 281 Toxicit• chronique pouvant r6sulter de l'emploi des cosmetiques et produits de toilette, Prevention des risques de, 332 Toxicity of Cosmetics and Toilet Prepara- tions, The Prevention of Hazards from Chronic, 322 h.dToxicological Properties of Several Commer- cially Available Surfactants, K. J. Olson, R. W. Dupree, E. T. Plomer, and V. K. Rowe, 469 Ultraviolet Absorbers, John M. Knox, 119 Uses of Enzymes in Cosmetics, The, Kenneth L. Howard, 59 Verhutung chronisch-toxischer Gefahren yon Kosmetika, Die, 340 Victor R. Wheatley, Ph.D., (Eighth Special Award), Allan L. Lorincz, 312 Water Holding Capacity of Callus by Pre- treatment with Additives, Modification of the, Charles Fox, James A. Tassoff, Martin M. Rieger, and Donald E. Deem, 263 Wheatley, Victor R., Ph.D. (Eighth Special Award), Allan L Lorincz, 312