482 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS SUMMARY A number of bis-phenols were evaluated for bactericidal activity in the presence of a non-lethal level of a synthetic anionic surfactant. Those compounds demonstrating 95 per cent and 99 per cent kill in twelve minutes at 20øC. are reported. Results of the bactericidal evaluation revealed both similarities and differences with the previously reported bacteriostatic properties of bis-phenols. Bactericidal action of several of the bis-phenols was observed to occur at surprisingly low levels against both S. aureus and E. coli. (Received April 20, 1962) REFEKENCES (1) Gump, W. S., and Walter, G. R., 5 t. Soc. Cosmetic Chemists, 11, 307 (1960). (2) Cade, A. R., and Gump, W. S., "The Bis-phenols" in "Antiseptics, Disinfectants, Fungi- cides, and Chemical and Physical Sterilization," edited by G. F. Reddish, 2nd edition, Philadelphia, Lea & Febiger (1957), p. 319. (3) Gal, I., Fette-Seifen-/lnstrichmittel, 63, 539 (1961). (4) Banks, C. J., and Huyk, C. L., ,,tm. 2 t. Hosp. Pharm., 19, 132 (1962). (5) Gump, W. S., and Cade, A. R., Mfg. Chemist, 24, 143 (1953). (6) Pritchard, H., Ibid., 23, 227 (1952). (7) Wendel, K., Zentr. Bakteriol. Parasitenk., Abt. II, 110, 145 (1957). (8) Ayliffe, G. A. J., Alder, V. G., and Gillespie, W. A., Lancet, 2, 456 (1959). (9) Berthet, R., Schweiz. ,,tpotheker-Ztg., 85, 833 (1947). (10) Engler, V., and Mirimanoff, A., Pharm. atcta Helv., 26, 59 (1951). (11) "Official Methods of Analysis of the Assoc. of Official Agricultural Chemists," 9th edition, 2 t. ,'tssoc. O•c. Atgr. Chemists, Washington, D.C. (1960), p. 63. (12) Lawrence, C. A., and Erlandson, A. L., Jr., •. aim. Pharm. atssoc. Sci. Ed., 42, 352 (1953). (13) Bean, H. S., and Berry, J., 5 t. Pharm. & Pharmacol., 3, 639 (1951). Atlantic Refining Co., Philadelphia, Pa. Consolidated Laboratories, Inc., Chicago, Ill. Difco Laboratories, Inc., Detroit, Mich. Atlas Chemical Industries, Inc., Wilmington, Del. Swift and Co., Chicago, Ill.

BOOK REVIEWS DICTIONARY OF COMMERCIAL CHEM- ICALS, by Foster Dee Snell and Cor- nelia T. Snell. D. Van Nostrand Co., Inc., Princeton, N.J. 1962. 795 pages, indexed. Price $12.50. The text is classified by type of compound, such as acid, alkali, etc. Each commercial substance in the group is then considered with the formula, general description, method of commercial manufacture, impurities and commercial grades. Only items of general industrial use are discussed. Thus we find that the term sodium molybdate covers a series of compounds. While two forms of aluminum chloride are mentioned, the rather widely used aluminum chlorohy- droxide is not included in the review. Beeswax is mentioned as being avail- able in slabs and bricks although discs are common in trade circles as are flakes. Witch hazel leaves are said to be astringent, a doubtful property. A desirable quality of this book is its wide and all encompassing scope. By the same reasoning, it is weak in its description of many substances. The arrangement of the entries appears to be well or- ganized, yet it is a bit problematical to locate a given substance except by referring to the index which is very well done. This is a good general dictionary, particularly in its description of articles of commerce within the scope of the text.--M. G. DEN. ENCYCLOPEDIA OF CHEMICAL TECH- NOLOOY, Second Supplement Vol- ume, edited by Raymond E. Kirk and Donald F. Othmer. Inter- science Publishers, Inc., New York 1, N.Y. 970 pages, illustrated and indexed. Price $25. The entries starting with acet- ylene and ending with unsaturated polyester resins, add information on older subjects and introduce a number of new subjects. A few subjects close to the heart of the cosmetic chemist not found in earlier volumes: nonionic surfac- rants, oxo process, PVP, polyethyl- ene oxides, sugar derivatives and U. ¾. absorbers. The entries discuss each subject quite well, documenting the same with enough references to support text statements. The style is sim- ilar to that used in earlier volumes. The section on polyethylene oxides could have stressed the Carbowaxes a bit more. You will want to add this to your previous set of sixteen volumes to keep them up to date.--M. G. DEN. THE CONDENSED CHEMICAL DIe- TIONARY, by Arthur and Elizabeth Rose, 6th Edition. Reinhold Pub- lishing Corp., New York 22, N.Y. 1961. 1257 pages. Price $17.50. One has seen this useful reference grow steadily over the years. This sixth edition is justified by the excellence of earlier ones and by the need to keep up with all the new things coming under the head- ing of "chemicals." Among the new entries are the polymers, ferrocenes, metal organics and plasticizers. There are thou- sands of new substances mentioned 483