Books stoichiometry, behavior of acids, bases, and gases. A chapter introduc ing biochemistry adds very little ex cept vocabulary. An illustration of an electron micrograph of a cell needs a legend and better marking of morpho logical features. T h e chapter on review of fundamentals of organic chemistry deals almost exclusively with nomen clature. T h e introduction to clinical chemistry concerns itself largely with the handling of specimens. T h e chap ter on photometry and spectropho tometry devotes space and emphasis on infrared photometry somewhat out of proportion t o its present use in clin ical analytical chemistry. T h e short discussion might better have been worked into the section in the second half of the book dealing with laborato ry techniques. In the chapter on isola tion and identification of drugs, the statement on page 101 t h a t " . . . sub stances such as alcohol in beer, nico tine in cigarettes and aspirin are less harmful and generally considered t o be innocent stimulants" is hardly in accord with present knowledge. Table 10.1 does not contain toxic blood "lev els" as stated in the heading. T h e chapter on radiochemistry will not be
of much help to the medical technolo gist, and no mention is made of RIA techniques. T h e last chapter in the first section deals almost entirely and too briefly with Auto-Analyzer meth odology. T h e second half of the book devotes 89 pages to descriptions of a number of discrete analytical procedures or applications of techniques to catego ries of procedures. RIA is omitted. I t is likely t h a t most of this material will be available in perhaps better detail in the manuals of the laboratory in which the technologist becomes employed and would be of use only as a laborato ry supplement to a beginning didactic course in clinical chemistry. This space would be better used in expan sion of the section dealing with theo retical principles. A number of minor errors not de tected in proofreading will presum ably be corrected if a second edition of the text is presented. T h e various chapters have well-cho sen illustrations of calculations and problems with answers. On the whole, the text is recom mended as a supplementary reference text for the medical technologist.
Viscosity Recording
The Brookfield recording Viscometer is a comprehensive system which gives a permanent record of viscosity and/or temperature as a function of time. Four measuring options are available: • Standard Brookfield disc or cylinder spindles. • Coaxial cylinder spindle and chamber — a defined system using small samples. • Cone/Plate for absolute shear rates using micro (1 ml) sample volumes. • Thermosel for measurement at elevated (500°F) temperatures. Optional electronic or pneumatic recorder.
New Books Handbook of Analysis of Organic Sol
vents. Vaclav Sedivec and Jan Flek. 455 pages. Halsted Press, 605 Third Ave., New York, N.Y. 10016. 1976. $42.50 Most of the analytical methods de scribed in this book can be carried out with apparatus and chemicals normal ly available in any laboratory. E m p h a sis is on macroanalytical methods, especially those which are rapid. As evident from the title, it is intended as a handbook, and as such each of the procedures is described in sufficient detail t o allow duplication without further reference. T h e book is divided into two parts. T h e first part contains five chapters t h a t present the general principles for the examination of sol vents and their mixtures and specify the methods of determination of their basic physical constants, separation, and identification. T h e second part deals with the description of the indi vidual solvents; only the usual sol vents of greatest practical importance are discussed. They are divided ac cording to chemical composition into
The Bath People
FORMA MODEL 2160
A bath and a circulator. Refrigerated and heated. - 3 0 ° C to + 100° C, ± 0.02° C. A large 9.7 gallon liquid capacity for tem perature stability. Solid-state controls for d e p e n d a b i l i t y . Our literature has the details.
WRITE FOR MORE DETAILS EXCLUSIVELY CONCERNED WITH
BROOKFIELD VISCOSITY
MEASUREMENT
ΑΝ0 CONTROL FOR
OVER 4 0 YEARS.
BROOKFIELD ENGINEERING LABORATORIES, INC. Dept. K 4
ST0UGHT0N, MASS. 02072
Forma Scientific
BOX 649 · MARIETTA. OHIO 45750 · AREA CODE 6 1 4 / 3 7 3 - 4 7 6 3 TELEX 24-5394 · TOLL FREE IN-WATS SERVICE 800-848-9730 AREAS 1. ? & 3
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CIRCLE 22 O N READER SERVICE CARD 1092 A · ANALYTICAL CHEMISTRY, VOL. 48, NO. 13, NOVEMBER 1976
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