PREPARATION OF MANUSCRIPTS 309 (b) (c) (22 X 28 cm) paper. The title of the manuscript should include the names, academic degrees, addresses (including zip code), and affiliation of the author or authors. The meeting at which the paper was presented should be fully identified. Synopsis: Each article should be preceded by a brief ab- stract of 100 to 200 words. This abstract should include the pertinent new discoveries and conclusions which are presented in the article. References: References should be numbered in the order in which they appear in the text and should be listed in numeri- cal order at the end of the article under "References." To assist readers, the complete title of the article should be in- eluded. Abbreviations of journals should be those used by Chemical Abstracts (cf. list of periodicals, abstracted by Chem- ical Abstracts). References should appear in the following form: (1) The surname of the author(s) first, followed by the initials. (2) Title of paper (all lower case letters except first letter in first word). (3) The name of the journal in italics, i.e., underlined once in the typewritten manuscripts. (4) The volume number in bold face type, i.e., underlined with a wavy line in the manuscript. (5) First and last page of the article separated by a hyphen. (6) Year of publication of the article (in parentheses) the month may be included when desired. Correctly prepared journal references are shown below please note all punctuation marks: (1) Gaul, L. E., and Underwood, G. B., Relation of dew point and barometric pressure to chapping of normal skin, J. Invest. Dermatol., 19, 9-19 (July 1952). • (2) Jones, S. T., U.S. Patent 3,123,456 (September 15, 1963). References to books are handled similarly and should include pertinent page numbers: (3) Rothman, S., Physiology and Biochemistry of the Skin, The University of Chicago Press, Chicago, II1., 1954, pp 494-560.

310 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS References to books containing contributions from numerous authors appear as follows: (4) Gershon, S. D., et al., Permanent Waving, in Sagarin, E., Cosmetics: Science and Technology, Interscience Publishers, New York, N.Y., 1957, pp. 585-587. (d) Abbreviations: If at all possible, the metric system should be used. In accordance with modern practice, abbreviations such as cm, scc, rpm, ml, l, and mg are used without periods. It is requested that authors avoid all unusual nota- tions, i.e., milligram per cent (mg •) or ppm mg/100 g and mg/kg arc more acceptable terminology. Prefixes be- fore names of organic compounds must be italicized (cis-, p-, tert-, etc.). (e) Trade Names: A trade name must bc followed by the sign "©" This should be followed by an asterisk, which refers to a footnote which identifies the owner of the trade mark, his address, and any other information desired by the author. (f) Structural Formulas: Structural formulas should be used only if absolutely necessary and if the chemical in question is not well known to the reader. Structural formulas should be numbered and referred to in the text by Roman numerals. (g) Tables: Tables should be numbered consecutively, using Roman numerals. Figures: Photographs and drawings (including graphs) are figures and are numbered consecutively, using Arabic num- bers (e.g., Fig. 3). On the back of each the figure number, title of paper, author's name, and top of figure should be indi- cated. Captions should be typed, double-spaced, on a sep- arate sheet of paper. Photographs should be glossy prints, preferably 8•2 X 11 in. Drawings should not exceed 8•/• X 11 in. All numbers and letters must be sufficiently large on the original to make the smallest characters legible after reduc- tion to print size. Lettering of coordinates is part of the drawings and should not be set in type. A TYPEWRITER MUST NOT BE USED BECAUSE TYPING DOES NOT GIVE THE CLEAN, SHARP FIGURE NECESSARY FOR