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On the basis of our values, it appears that the average solubilizing micelle in 5 per cent potassium laurate hFs effectively 12 negative charges, an equivalent spherical radius of about 25 A., and a molecular weight of at most 40,000, corresponding to 170 soap molecules. We are indebted to the Bristol Myers Company for support which made this work possible. HORST W. HOYER. Department of Chemistry KAROL J. MYSELS. University of Southern California Los hngeles 7, California March 22, 1950
B O O K S RECEIVED BR.AI-.AIS, 31. A On the Systems Formed by Points Regularly Distributed on a Plane or in Space. Translated by Alios J. SHALER. The Crystallographic Society of America Memoir S o . 1 . May be obtained from W. Parrish, Crystallographic Laboratory, Philips Laboratories, Inc., Irvington-on-Hudson, Xew York City. 1949.113 pp, Price: $3.40 to members, $3.90 t o nonmembers of the Society. DANIELS,FARHISGTON, ~IATHEW JOSEPH S , HOWARD, WILLIAMS,JOHN WARREN, BESDER, par^, MURPHY,GEORGEW . , A m ALBEHTY, ROBERTA . Experimental Physical Chemi s t r y . 4th edition. XZcGraw-Hill Book Company, Inc., 300 West 42nd St., Kew York 18. 1949. 568 pp. Price: $4.50. KARVE,D. D. An Elementary Teztbook of Organic Chemistry. Dastane Brothers’ Home Service, Ltd., 456 Raviwar Peth, Poona 2, India. 1949. 192 pp. Price: Rs. 2-12-0. KARVE,D . D., ASD ADVASI,G. D . Selected T o p i c s f r o m Organic Chemistry. Dastane Brothers’ Home Service, Ltd., 456 Raviwar Peth, Poona 2 , India. 1947. 418 pp. Price: Rs. io/--. KIRK, PAVLL. Quantitatice Cltramicroanalysis. John Wiley and Sons, Inc., 440 Fourth Ave., New York 16. 1950. 310 pp. Price: $5.00. NIVES, WILLIAM R., J R . T h e Fundamentals of Detergency. Reinhold Publishing Corporation, 330 West 42nd St., S e w York. 1950. 256 pp. Price: $5.50. PARTINGTON, J. R . .4n Adt,anced Treatise on Physical Chemistry. Vol. I . Fundamenta Principles, T h e Properties of Gases. Longmans, Green and Company, Inc., 55 Fifth Ave., S e w York. 1949. 943 pp. Price: S16.00. REIKER,~ I A H KDeformation US. and Flow. H . K. Lewis and Company, Ltd., London. 1949. 346 pp. Price: $6.50.
Third S y m p o s i u m o n Combustion and Flame and Explosion Phenomena. Published under the auspices of the Standing Committee on Combustion Symposia: Bernard Lewis, C h a i r m a n , Hoyt C. Hottel, Secretary, and A . J. S e r a d . The Williams &- Wilkins Company, Baltimore 2, hlaryland. 1949. 748 pp. Price: $13.50. Frontiers i n Chemistry. T-ol. V I I I . Frontiers in Colloid Chemistry. Edited by R. E. B U R R ASD OLIVER GRUMZIITT. Interscience Publishers, Inc., 215 Fourth Ave., Kew York 3 . 1950. 157 pp. (To April 4, 1950) ADAMS, DOUGLAS P . (Compiler and Editor). An I n d e x of S o m o g r a m s . Published jointly by The Technology Press of The Massachusetts Institute of Technology and John Wiley and Sons, Inc., Kew York. 1950. 174 pp. Price: $4.M).
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BERL,WALTERG. (Editor). Physical Methods in Chemical A n a l y s i s . Vol. I. Academic Press, Inc., New York. 1950.664 pp. Price: $12.00. BVRK,R . E., AXD GRCMMITT, OLIVER(Editors). Frontiers in Chemistry. Vol. VZZI. Frontiers in Colloid Chemistry. Interscience Publishers, Inc., 215 Fourth Ave., Iiew York 3. 1950. 157 pp. FARKAS, ADALBERT (Editor). Physical Chemistry of Hydrocarbons. Vol. I. Academic Press, Inc., New York. 1950. 453 pp. Price: $8.50. HARKED, HERBERTS., AND OWEX,BENTON B. T h e Physical Chemistry of Electrolytic Solutions. Second edition. Reinhold Publishing Corporation, 330 West 42nd St., New York 18. 1950.645 pp. Price: $10.00. HOUWINK, R . (Editor). Elastomers and Plastomers. Vol. I . General Theory. Elsevier Publishing Company, Inc., 215 Fourth Ave., New York 3. 1950. 495 pp. Price: $7.00. KARRER,PAUL.Organic Chemistry. Original translation by A. J. Mee. Fourth English edition, revised and enlarged in accordance with the 11th German edition by H. V. Simon and N. G. Bisset. Elsevier Publishing Company, Inc., 215 Fourth Ave., New York 3. 1950. 973 pp. Price: $8.50. REINER,MARKUS.Twelve Lectures o n Theoretical Rheology. Interscience Publishers, Ino., 215 Fourth Ave., New York 3. 1949. 162 pp. Price: $4.00. UBER, FREDM. (Editor). Biophysical Research Methods. Interscience Publishers, Inc., 215 Fourth Ave., New York 3. 1950. 667 pp. Price: $9.50. WEISSBERGER, ARNOLD(Editor). Technique of Organic Chemistry. Vol. 111. Heating and Cooling; Mixing; Centrifuging; Extraction and Distribution; Dialysis and Electrodialysis; Crystallization and Recrystallization; Filtration; Solvent Removal, Evaporation, and Drying. Interscience Publishers, Inc., 215 Fourth Ave., New York 3. 1950. 661 pp. Price: $10.00.
