De - E1 -- 38 -- Development of a Detergent Test- Part I, by W. B. Smith and A. Taylor, 6, 96. Development of a Detergent Test- Part II, by W. B. Smith and A. Taylor, 6, 239. Development of a Detergent Test- Part III, by W. B. Smith and A. Taylor, 7, 413. Development of Machineless Permanent Waving, The, by E.G. McDonough, 1, 183. Development of a New Product, by R. T. Dobson, 7, 402. Developments in Aliphatic Chemistry and their Influence on the Cosmetic Industry, by W. H. Dicken, 2, 126. Diagnosis of Cosmetic Dermatitis, The, by Louis Schwartz, 1, 46. Diffusion Rate of Sulphathiazole from Cold Cream Type Ointment Bases, The Effect of Variation of the Water and Oil Ratio on the, Aubert Coran antd C. Lee Huyck, 7, 20. Directory of Members, 1, 296. Directory of Membership, 2, 198. Disulfides, Recent Progress in the Che- mistry of, by Norman A. Rosenthal and Gerald Oster, 5, 286. Disulphides and Mercaptans in Hair Chemistry, The Role of, by J. L. Stoves, $, 170. Draize, John H., The Man and The Scientist, G. Robert Clark, 9, 120. Drugs in Cosmetics- Should They Mix ? by A. J. Lehman, 10, 314. Dyeing of Keratinous Proteins, Some Aspects of the Oxidative, by Harold Burton, 2, 240. Dyes, Toxic and Allergic Complications of Hair, Samuel M. Peck, 5, 113. Dyestuffs, Pigments, Lakes and in Cos- metics, by D. F. Anstead, 10, 1. Economic Aspects of Skin Geriatrics, Social and, Edward Henderson, 6, 382. Eczematous Sensitization, The Sequence of Events in the Development of an, by Adolph Rostenberg, Jr., 6, 34. Education, Cosmetics and Cosmetology in General, Florence E. Wall, 8, 169. Educational Requirements of Cosmetic Chemists, by Curt P. Wimmer, 1, 210. Effect of Bilatera!. Structure on the Chemistry of Keratin Fibers, The, by J. H. Dusenbury, and E. B. Jeffries, 6, 355. Effect of Cosmetic Emulsions on the Stratum Corneum, by Donald H. Powers and Charles. Fox, 10, 109. Effect of Physical Factors on the Form- ation of Cosmetic Emulsions, The, by G. L. Stanko, W. C. Fiedler, and G. J. Sperandio, 5, 39. Effect of Some Aromatic Chemicals and Essential Oils Upon the Stability of Cosmetic Emulsions, The, by S. A. Karas, 1, 374. Effect of Sorbic Acid and Other Preserv- atives on Organism Growth in Typical Nonionic Emulsified Commercial Cosmetics, The, by R. Donald Charles and Phyllis J. Carter, 10, 383. Effect of the Nature of the Emulsifying Agent on Emulsion Inversion, Paul Becher, 9, 141. Effect of Variation of the Water and Oil Ratio on the Diffusion Rate of Sulphathiazole from Cold Cream Type Ointment Bases, The, by Aubert Coran and C. Lee Huyck, 7, 20. Effect Upon Emulsions of the Hydroxy Compounds in Beeswax, The, by J. Pickthall, 6, 263. Egypt, The Cosmetic Arts in Ancient, by George R. Hughes, 10, 159. Eighth Honorary Membership, 7, 493- 495. Eighth Medal Award, 7, 281. Electricity Produced on Hair by Comb- ing, A Method for Studying the Sta- tic, R. G. Barber and A.M. Posner, 10, 236. Electron Microscope, The Fine Struc- ture of Human Epidermis as Revealed by the, by Cecily C. Selby, 7, 584. Electron Microscope-A Tool for the Study of Hair Fibers, The, W. L. Courchene, 8, 60.

--- 39 -- Em-Er Emerging Cosmetic Industry, The, by Paul G.I. Lauffer, 7, 26. Emil G. Klarmann, Man of Science, by Louis Schwartz and Edward Sagarin, 5, 60. Emil G. Klarmann, The Man, by 54. G. de Navarre, 5, 53. Emulsification: Theory, Applications and Limitations, Ultrasonic, by Wilfred Roth, 7, 565. Emulsifiers, Nonionic, The Interference of with Preservatives VIII, by Johanna Popryzan and Maison G. de Navarre, 10, 81. Emulsifiers with Preservatives. II, The Interference of Nonionic, by 54. G. de Navarre and Harold E. Bailey, 7, 427. Emulsifiers with Preservatives. III, The Interference of Nonionic, M. G. de Navarre, 8, 68. Emulsifiers with Preservatives with Special References to Cosmetics, The Interference of Nonionic, M. G. de Navarre, 8, 371. Emulsifying Agent on Emulsion Inver- sion, The Effect of the Nature of the, Paul Becher, 9, 141. Emulsion Control, Toward, Sydney Ross, 6, 184. Emulsion Formulation, Practical Aspects of, by I. R. Hollenberg, 1, 368. Emulsion Inversion, The Effect of the Nature of the Emulsifying Agent on, Paul Becher, 9, 141. Emulsion, Milk White Appearance and Its Significance in Cosmetic, Paul Mannheim, 9, 26. Emulsion Stability, Theory of, by Harold L. Greenwald, 6, 164. Emulsion Systems, Aerosol, P.A. Sanders, 9, 274. Emulsions, An Evaluation of Humect- ants in Cosmetic, Gerald C. Henney, R. V. Evanson and Glen J. Sperandio, 9, 329. Emulsions and the Cosmetic Chemist, by Jack Pickthall, 2, 141. Emulsions, Factors to be Considered in the Preservation of Cosmetic, Linwood F. Tice and Martin Barr, 9, 171. Emulsions of the Hydroxy Compounds in Beeswax, The Effect Upon, by J. Pickthall, 6, 263. Emulsions on the Stratum Corneum, The Effect of Cosmetic, by Donald H. Powers and Charles Fox, 10, 109. Emulsion. s, Stability of CoSmetic, by William Colburn, 2, 193. Emulsions, The Effect of Physical Fac- tors on the Formation of, Cosmetic, by G. L. Stanko, W. C. Fiedler, and G. J. Sperandio, 5, 39. Emulsions, The Effect of Some Aro- matic Chemicals and Essential Oils Upon the Stability of Cosmetic, by S. A. Karas, 1, 374. Enzyme Inhibitors for Dentifrices, by R. S. Manly, 5, 266. Enzymes in the Skin: Their Use as a Research Tool, Studies on, Robert D. Griesemer, 9, 148. Epidermal Differentiation, Newer As- pects of, by Peter Flesch, 6, 14. Epidermal Keratinization, Biochemical Data on Physiological and Patholo- gical, by Peter Flesch, 7, 521. Epidermis and Their Possible Relation to Aging Skin, The Structural Pro- teins of, C. Carruthers, D. L. Wcernley, A. Baumler, and H. Shorts, 6, 324. Epidermis as. Revealed by the Electron Microscope, The Fine Structure of Human, by Cecily C. Selby, 7, 584. Epidermis, Mucopolysaccharides in Hu- man, by Peter Flesch, 10, 154. Epidermis of Animals Which May Be of Value to the Cosmetic Chemists, Experiments on the, by Earl O. Butcher, 5, 229. Eric C. Kunz, A Eulogy, Valentine H. Fischer, 2, 258. Eric C. Kunz, Medalist, Edward Sagarin, 2, 2,60. Ernest Guenther, My Friend, by Emil G. Klarmann, 7, 283.