80 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS Translations Available English translations of the following papers may be obtained by writ- ing to Mr. Robert A. Kramer, Evans Chemicals, Inc., 250 East Forty- third Street, New York, New York 10017. "Studies of the Phenomenon of Permanent Waving of Human Hair," by Dr. Hans Freytag. "Alteration of Hair Keratin by Cosmetic Processing and Natural Environmental Influences," by Dr. Peter Berth and Dr. Gunter Reese. "New Information about the Morphological Structure of the Hair," by Dr. Rudolf Randebrock. "The Application of the Analytical Methods of Sulfur Chemistry to Permanently Waved Hair," by Prof. Dr.-Ing. Helmut Zahn, Dr. Tarsilia Gerthsen, and Dipl.-Chem. Marie-Luise Kehren.
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