STATISTICAL METF. ODS IN THE COSMETIC INDUSTRY tCh testing and market research techniques will be analysed and the ign of experiments dealt with simply. , easy reference, the examples--together with the statistical procedure analysis--are listed below: an Content of bottles' and its fiducial limits. of Methods of analysis: Two methods carried out on the same sample. See Section ß Standard Deviation. p. 235 t-test (a). p. 238 More than two methods carried out on one sample, with replication. Two methods carried out on different samples. More than two methods, each carried out on several samples. Analysis of Variance (a). •,p. 241 t-test (b). p. 239 Analysis of Variance (b). p. 242 : ective assessment of preference for one of a pair :of 'products. of cap• supplied by different manufac- Binomial Distribu- tion, and X• Test. ß p. 255 Test. p. 247 • between cooling time and vessel size. ective Evaluation of Jasmin Absolute. xpert judgment of consumer acceptability. •'•! Lipstick Containers--control of defectives before ß •,3• :• .., •:• •:'.': factor use ' .?.• •}•:•'•::•: AMENDED CONSTITUTION AND RULES •:•'5•Britain Correlation Coeffici- ent, and Line of Best Fit. p: 248 Ranking Methods. p. 250 •'' Ranking Methods. ß p. 25r • :. ß Quality Control.' p. 252 special general meeting of the So9iety of Cosmetic Chemists of Great was held on October 23rd, 1952, when general acceptance was '•i?btained for the Society's amended Constitution and Rules. The main i• ffference between the old and new rules lies in the introduction of an •i/associateship for those not fully qualified as cosmetic chemists. The new rules ::•?lso change the titles of chairman and vice-chairman to president and vice- ?:Presideny respectively--Dr. R. H. Marriott being now the president and ??Mr. F. \'. Wells vice-president. ::'•':- 255