New Books Diffraction Grating Handbook. Staff of the Bausch & Lomb Diffraction Grat ing Research Laboratory, Erwin G. Loewen, Director. 60 pages. Bausch & Lomb, Analytical Systems Division, 820 Linden Ave., Rochester, N. Y. 14625. 1970. Paperbound. $2.50 (priced lower in quantities of 50 or more)
One section of the handbook de scribes in detail the fundamentals of grating physics. This section is of spe cial significance as it collects in a few concise pages information which one would otherwise have to compile from many textbooks and research pa pers. A history of diffraction grating technology, a description of the David Richardson Grating Laboratory in Rochester, and discussions of ruling en gines and grating replication are also included in this handbook. Other sec tions of this book discuss the blazing of gratings as it affects reflection and transmission, the testing of gratings, different applications, including unusu al uses such as satellite spectroscopy and the calibration and electron mi croscopes, overcoatings, and general ad vice on the selection and use of grat ings. This compact volume should be a very useful reference and teaching source for industry, research, and edu cation.
THREE Good Reasons Buchler is the First Name in Flash Evaporators Universal Models for batch or continuous operation. Heavy duty Performance.
2 Portable Model with Dewar Condenser for operation with dry ice. Performs evaporation of heat sensitive materials at room temperature. Continuous feed.
3
Progress in Nuclear Magnetic Reso nance Spectroscopy, Vol. 5. J. W. Emsley, J. Feeney, and L. H. Sutcliffe, Editors. vii + 406 pages. Pergamon Press, Ltd., Maxwell House, Fairview Park, Elmsford, Ν. Υ. 10523. 1970. $18.50
This is the fifth volume in a series concerned with nuclear magnetic reso nance spectroscopy, one of the most rapidly expanding branches of chemis try. This expansion is taking place over a wide front, embracing not only the fundamentals of the subject but also instrumentation and applications of the technique to a host of structural and analytical problems. This series was to make available a continuous supply of up-to-date authoritative re views dealing with topics of current in terest. The three articles composing this volume include: the INDOR technique in high-resolution nuclear magnetic resonance, magnetic nonequivalence related to symmetry consider ations and restricted molecular motion, and applications of Ή nuclear magnet ic resonance spectroscopy to the con formational analysis of cyclic com pounds. An author index and a subject index are also included. This volume will prove valuable to nuclear scientists, chemists, and physicists.
Portable Model with Spiral Condenser and Thermo-Lift temperature controlled heating bath. Height of bath may be adjusted from 8" t o 16".
To evaporate aqueous solutions, high boiling point solvents, strong acids, alkalis and radioactive mat erials without contaminating back-drip. Distillation occurs only within glass and Teflon, preventing c o n t a m i n a t i o n . Balanced design permits smooth
rotation
w i t h o u t d r a g a n d l a r g e r o u t p u t w i t h o u t loss of m a t e r i a l . C o n t i n u o u s f e e d of s o l u t i o n or i n e r t gas. No O-rings w a s h e r s n e c e s s a r y . Easy c o n v e r t i b i l i t y f r o m o n e
or
model
to a n o t h e r . FOR FURTHER INFORMATION SEND FOR TECHNICAL BULLETINS
BUCHLER INSTRUMENTS DIVISION NUCLEAR-CHICAGO A SUBSIDIARY OF G. D.
SEARLE
CORP. &
CD.
1327 SIXTEENTH STREET, FORT LEE, NEW JERSEY, 07024 Circle No. 12 on Readers' Service Card
ANALYTICAL CHEMISTRY, VOL. 42, NO. 9, AUGUST 1970
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