JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS GENERAL NOTICES Publication dates: The "Journal of the Society of Cosmette Chemists" is published every four weeks. Five issues for the Society of Cosmerle Chemists of Great Britain by Pergamon Press Ltd., Headington Hfil Hall, Oxford, England. Six issues by the Society of Cosmerle Chemists from 6220 Kansas Avenue, N.E., Washington, D.C.20011, U.S.A. Two issues for the Gesellsehaft Deutseher Kosmetik-Chemiker, e.V. by Dr. Alfred Hiltbig Verlag, Wilkenstrasse 8-5, Heidelberg, Germany. Issue No. Publication Date Country of Origin 1 8th January Great Britain 2 5th February U.S.A. 3 4th March U.S.A. 4 1st April Great Britain 5 29th April Germany 6 27th May U.S.A. 7 24th June Great Britain 8 22nd July Great Britain 9 19th August U.S.A. 10 16th September U.S.A. 11 14th October Great Britain 12 1 lth November Germany 13 9th December U.S.A. Advertisements: All enquiries regarding advertisements in the British Editions of the Journal should be addressed to Mr. J. V. Robinson, Pergamon Press Ltd., 4 & 5 Fitzroy Square, London W. 1. Subscription: All members of the Society of Cosmetic Chemists of Great Britain receive one copy of each edition free. Further copies at non-member rates. Industrial and non- member subscribers: •21. Non-profit institutional subscribers: •14 per annum, post free. Single issues: 42s, post free. Missing numbers: Journals are despatched at Printed Paper rate. Claims for missing numbers can be entertained only from subscribers in the country of origin of the particular issue, and must be made within 30 days from date of Issue. Members and subscribers are urged to give notice of change of address to the Publication Offices. Responsibility for statements published: The Society of Cosmetic Chemists of Great Britain and its Hon. Editor assume no responsibility for statements or opinions advanced by con- tributors to this Journal. Lectures: The Society shall have the right of first publication of any lecture or address deliv- ered before it, but does not undertake to publish any given matter. Copyright: Reproduction of synopses, duly credited to the authors and T• JOURNAL OF TH• SOCIETY OF COS•TIC CH•mSTS, is permitted. Digests of articles not exceeding 400 words may bo published, duly credited to the author and TH• JOURNAl. OF •H• SOCIetY OF COSt,TIn C•mmsTs. Reprinting or extensive copying (whole pages or articles) is forbidden, except by special permission in writing, from the Hon. Editor. Any republica- tion must indicate the source of the original paper. The copyright of all papers published in the British Editions belongs to the Society of Cosmetic Chemists of Great Britain. Authors must obtain written permission from the copyright holder to reproduce illustra- tions or quotations from other sources. Photocopying in libraries: Attention is drawn to the provisions of the Copyright Act 1956, part 1, section 7, whereby a single copy of an article may be supplied, under certain conditions, for the purposes of research or private study, by a library of a class prescribed by Board of Trade regulations (Statutory Instruments, 1957, No. 868). Multiple copying of the contents of this Journal without permission is illegal but terms may be negotiated with the publisher. Manuscripts: These should be in accordance with the "Directions for preparation ooe manu- scripts," copies of which are available from the Hon. Editor, Ashbourne House, Alberon Gardens, London, N.W. 11.