NEW BOOKS
ELIMINATE THE HAZARD For laboratories where water pressure is low or uneven . . on upper floors of tall buildings . . . in rural or unde veloped areas . . USE THE
of i n a d e q u a t e or f l u c t u a t i n g water pressure w h i c h c a n m e a n t h e loss of v a l u a b l e t i m e a n d material . . .
NEW
Buchler
WATER BOOSTER • RAISES and H O L D S PRESSURE A T 4 0 psi • Provides 2 Independent and Powerful Aspirators • Noiseless in operation—continuous duty—needs no maintenance or replacement parts • Can be installed without any plumbins or building alterations
Complete with overload-protected 1/3 HP, single-phase, induction-type motor, water, turbine, stainless-steel water reservoir tank, 2 polyethylene water aspirators 16" long, 10" wide, 23" high. For 110-115V 60 cy o n l y . . . &*}AQ 00
Request Bulletin A
LABORATORY APPARATUS
2-9000
BUCHLER INSTRUMENTS, INC.
PRECISION INSTRUMENTS
5 1 4 West 147th Street, N e w York 3 1 , Ν. Υ. ADirondcick 4 - 2 6 2 6
Circle No. 123 on Readers' Service Card
Help for y o u ! 3 YEARS IN PREPARATION
if you plan, direct, or buy for laboratories, here's all kinds of help for you — the complete line of facilities in Sheldon's new 244-page catalog-, plus Sheldon consulting and planning service. Write for details.
Ε. Η.
Sheldon
EQUIPMENT COMPANY
151 NIMS ST., M U S K E G O N , M I C H I G A N Circle No. 92 on Readers' Service Card 78 A
·
ANALYTICAL CHEMISTRY
able the current t r e n d s in theoretical electrochemistry. While there are no analytical procedures, the material will be most valuable to t h e practical minded chemist who is h a r d pressed to keep u p with fundamental advances. 212 references, including m a n y from 1959. " T h e Analytical Chemistry of Thioacetamide," by E . H . Swift and F . C. Anson. Swift is a m a s t e r in writing clear, critical, concise b u t detailed de scriptions. M y comments would be superfluous; this is his field. 97 refer ences. "Near-Infrared S p e c t r o p h o t o m e t r y , " by R. F . Goddu. Although there has been relatively little work in t h e region of 1 to 3 μ, Goddu has assembled a wealth of useful data and helpful hints on the use of this new tool. T h e em phasis is quantitative rather t h a n qualitative. 125 references. A subject index completes the book. I n recent years, the n u m b e r of " R e views" and " A d v a n c e s " has nearly kept pace with t h e original literature and one wonders whether he will have time to read yet another series. This re viewer concludes t h a t the several a u t h o r s of this volume deserve a n o t e of thanks. Despite a few shortcomings, which can certainly be excused in t h e first volume, this series will be neces sary reading for ambitious analytical chemists.
Activation Analysis H a n d b o o k .
Vol.
I. R. C. Koch. 219 pages. Aca demic Press, Inc., Ill Fifth Ave., New York 3, Ν. Υ. 1960. $8. Reviewed by W. Wayne Meinke, Department of Chemistry, University of Michi gan, Ann Arbor, Mich. T h e heart of this reference handbook on activation analysis is the t a b u l a r presentation of nuclear and experi mental information which occupies most of its pages. Two facing pages are allotted to each element, one for information on neutron techniques, t h e other for a s u m m a r y of charged-particle reactions. All tables are cross in dexed to an extensive bibliography. For each element the left-hand page begins with a s u m m a r y of nuclear d a t a for the pertinent isotopes. There fol lows a listing from the literature of one-sentence summaries and experi mental sensitivities for thermal neutron (n, y) reactions with different m a t r i x materials. N e x t is t a b u l a t e d fast neu tron information for reactions such as t h e (n, p) and (n, a). A novel and very useful section presents a discussion of possible interferences which might be encountered when t h e foregoing reac tions are applied to analysis. Finally,
