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1 Quality Source For all your liquid sampling needs. Barnes Infrared Analytical Accessories
Barnes offers a variety of cells and holders to meet virtually every liquid sampling requirement. Sealed or demountable, the cells have precise pathlengths and are leakproof. And they are available with almost any window material. Barnes cells fit all types of spectrometers, including Beckman, Perkin-Elmer and Varian, and are significantly lower priced. For all your liquid sampling needs, check pages 8 through 19 in our new 40 page catalog, "Barnes Infrared Analytical Acces sories." Write or phone for your copy. Barnes Engineering Company, 30 Commerce Road, Stamford, Connecticut 06904. Call toll free (800) 243-3498 Ext. 281 or in Conn. (203) 348-5381 Ext. 281. NOW GSA LISTED.
BARNES Your IR Spectroscopy Source. The book portrays the growth and activities of the ACS in the context of a century that saw two World Wars, the Great Depression, the Cold War, the Space Race, the environmental movement, and numerous scientific and engineering advances. The volume traces the development of chemical science and technology in the framework of the 27 technical divisions of the Society. It includes a compact, 100-year record of ACS people and events.
The Role of Chemists and the American Chemical Society H e r m a n S k o l n i k , Chairman, Editorial Board; Kenneth M. Reese, Editor
Part One: Historical Perspectives, Chemical Education, Professionalism, Publications, Impact of Government, Public Affairs, Intersociety Relations, Governance, Headquarters Staff and Operations, ACS Divisions and their Disciplines. Part Two: The Record 468 pages (1976) $15.00 clothbound LC 76-6126 ISBN 0-8412-0307-5 SIS/American Chemical Society 1155 16th St., N.W./Wash., D.C. 20036 Please send copies of Λ Century ol Chemistry at $15.00 per book. D Check is enclosed for $ Π Bill me. Postpaid in U.S. and Canada, plus 40 cents elsewhere. Name
An illuminating portrait of the life and times of the world's largest scientific society devoted to a single discipline.
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862 A · ANALYTICAL CHEMISTRY, VOL. 48, NO. 11, SEPTEMBER 1976
Foundations of Ultra-Centrifugal Anal ysis. Hiroshi Fujita. xviii + 459 pages. John Wiley & Sons, Inc., 605 Third Ave., New York, N.Y. 10016. 1975. $25.95
Reviewed by E. T. Adams, Jr., De partment of Chemistry, Texas A&M University, College Station, Tex.
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A Century of Chemistry
the comparison and choice of a meth od for specific analytical problems. These examples provide a good per spective of current analytical chemis try. Some of the better features of this book include brief previews of each technique (terse statements of princi ples, instrumentation, applications, and disadvantages), the numerous ta bles presenting a wealth of compara tive information, its readable style (despite the "British" spelling), and its easy introduction to SI units. On the other hand, there are no nu merical examples worked out, no problems or questions, and most equa tions are simply presented without derivation and often with inadequate explanation. T h u s , it is well suited for an advanced technician-type of curric ulum or as a reference book for the nonspecialist. However, most universi ty instructors will probably find t h a t its superficial coverage of most topics, other than spectroscopy, will invali date its use as a textbook.
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T. Svedberg and H. Rinde coined the term "ultracentrifuge" in their historic paper, " T h e Ultracentrifuge, A New Instrument for the Determina tion of Size and Distribution of Size of Particle in Amicroscopic Colloids", J. Am. Chem. Soc, 46, 2677 (1924). Al though the ultracentrifuge was devel oped for solving problems in colloid chemistry, it has had a profound influ ence in biochemistry and fields related to it. T h e ultracentrifuge has also been quite useful in polymer, inorganic, and physical chemistry. Professor Fujita's monograph is a very timely and useful book, appearing just after the comple tion of the first 50 years of ultracentrifugation. This book will be most useful to persons somewhat familiar with the ultracentrifuge. While it tells the theory of ultracentrifugation like it is, the book also has numerous tables and illustrations showing the applications of the theory. T h e monograph is well written, and the amount of material presented is quite extensive. An im p o r t a n t new feature of this book is the chapter on sedimentation equilibrium of chemically reacting systems—selfassociations and mixed associations. Most of the major developments in this field have occurred since 1962; therefore, this subject is not covered
