NEW BOOKS
LABORATORY RECORDER
procedures for the analysis of creams, lipsticks, shampoos, nail lacquers, nail extenders, hair fixatives, cold wave so lutions and neutralizers, thioglycolate hair straightener creams, depilatories, deodorants, sunscreens, and hair dyes. The analysis of face powders is not discussed, as details of methods are available in the Official Methods of Analysis of the Association of Official Agricultural Chemists (9th edition, 1960).
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Pen travel 1 S e c o n d full scale. Accuracy 9 9 % or better. Photoelectric C h o p p e r for long life. Z e n e r d i o d e stabilized r e f e r e n c e voltage. • Adjustable p a p e r s p e e d s . • Input suitable for high impedance) sources. • Adjustable r a n g e control1.
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Techniques.
This volume contains the majority of papers presented at the 1961 Con ference on Vacuum Microbalance Tech niques which was held at the National Bureau of Standards, Washington, D.C, on April 20-21, 1961. The first four papers of this volume refer to specific instruments described in the first volume. The remaining papers primarily deal with applications to high temperature studies, vapor pres sure measurements, chemical reaction rates, and measurements on thin films. The last paper is a discussion of the calibration of mass standards for mi crobalances by direct comparisons ul timately descended from the Interna tional Kilogram.
T h e S e r v o - G r a p h i c R e c o r d e r îs a n i d e a l laboratory instrument. Put it t o work and s a v e a v a l u a b l e technician's time. O.E.M. users invited.
MULTI-CHANNEL HIGH fREQUENCY
Microbalance
Volume 2. Edited by R. F. Walker. 179 pages. Plenum Press, Inc., 227 W. 17th St., New York 11, Ν. Υ. 1962. $9.50.
OSCILLOGRAPHS MANIPULATORS
4 2 4 NORTH ΗΟΛΛΑΝ AVE., CHICAGO 2 4 , ILL. Circle No. 127 on Readers' Service Card
Developments in Applied Spectros copy. Vol. 1. Edited by W. D. Ashby. Plenum Press, Inc., 227 W. 17th St., New York 11, Ν. Υ. 1962. $9.00.
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LABORATORY APPARATUS REAGENTS ι ΑΝΘ J CHEMICALS I
This volume contains reports read at the Twelfth Annual Symposium of Spectroscopy, held May 15-18, 1961 in Chicago, and sponsored by the So ciety for Applied Spectroscopy. This compilation of papers covers original work performed in the areas of infrared, Raman, optical emission, x-ray, ultraviolet, flame, general ab sorption, NMR, gas chromatography, atomic absorption, and other related areas. Some specific topics included are: Determination of Cladding Thickness of Nuclear Fuel Elements by X-Rays; The Sample Problem in Raman Spec troscopy ; Paramagnetic Resonance and Photomagnetism ; Advances in Ioniza tion Detectors; Fast Scanning Method for X-Ray Spectroscopy; Isotopic Sub stitution in the Analysis of the Infrared Spectra of High Polymers ; Spectral Ex citation with Stabilized Plasma Jets.
Circle No. 193 on Readers' Service Card
1 0 4 A·ANALYTICALCHEMISTRY
Circle No. 164 on Readers' Service Card
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