MANUFACTURERS' LITERATURE
Easy-to-Use Taylor Comparators make it simple to get accurate, on-the-spot water analysis Taylor Water Analyzer for fluorides and practically all Standard Methods determinations
gamma sources. Nuclear Materials and Equipment Corp., Apollo, Pa. 614 GC-IR Analyzer. A 4-page bulletin describes the GC-IR analyzer. This device simplifies the recording of infrared spectra of gas chromatographic fractions. Wilks Scientific Corp., South Norwalk, Conn. 615 Digital Voltmeters. An 8-page catalog contains features and specifications for 301 digital voltmeters. The catalog lists more than 100 all-electronic A to D converters, integrating digital voltmeters, mercury relay digital voltmeters, reed relay models, and plug-in or oil-bathed stepping switch instruments. Non-Linear Systems, Inc., P. 0. Box 728, Del Mar, Calif. 616 Infrared Detector. A 4-page bulletin described the Golay pneumatic infrared detector. This is designed for use as a detector in spectrometry, but may also be used as the detector in nondispersive systems or for low temperature pyrometry. Unicam Instruments, Ltd., Cambridge, England. 617
BRONWILL
MAG-JET:.. THE FIRST IMMERSIBLE MAGNETIC STIRRER M A G - J E T is a low cost magnetic
stirrer that can be immersed with complete safety, in your own bath. Requires no electricity . . . operates on water pressure, air pressure or equivalent vacuum. M A G - J E T is a
compact, enclosed turbine, made of sturdy cast aluminum with an impeller that rides in jewelled bearings. BRONWILL N O . 26 M A G - J E T ,
complete with stirring bar 16.95 each Less 10% for 12 or more, less 2 0 % in lots of 72.
Chemical Specialties. A ninth revised edition of "Vendors to the Trade" lists the services, supplies, and raw materials offered by 294 member companies of the Chemical Specialties Manufacturers Association. Chemical Specialties Manufacturers Association, 50 East 41st St., New York 17, N. Y. 618
Model W Boiler Water Comparator for pH and phosphate control Also available: pH and Chlorine Comparators — Chromate Comparator for corrosion control.
Make easy, on-the-spot tests in minutes—get accurate results to maintain rigid control over important operations. No experience required. No individual glass standards to handle. Taylor color standards are unconditionally guaranteed non-fading. For Taylor sets or replacement of supplies, see your dealer.
T
"
MODERN) ( p H AMD ' CHLORINE) (CONTROL
FREE HANDBOOK Discusses importance of process control in chemicals, food, pharmaceutical, texile, paper, other industries. Illustrates and describes complete Taylor line.
Radiation Detectors. A 12-page brochure gives specifications for organic and halogen quenched G-M counters, fast and slow neutron detectors, gas flow proportional counters, and many special purpose detectors. Radiation Counter Laboratories, Inc., 5121 West Grove St., Skokie, 111. 619 Gas Chromatograph. A 12-page bulletin is devoted to the Model 226 gas chromatograph. This model provides the tightest temperature control and the most accurate sampling process of any gas chromatograph according to the company. Perkin-Elmer Corp., Norwalk, Conn. 620 Centrifuges. An 18-page catalog describes and illustrates centrifuges; super speed, vacuum, refirigerated, and nonrefrigerated models are included. Various accessories and attachments are also covered. Lourdes Instrument Corp., 656-678 Montauk Ave., Brooklyn, N. Y. 11208. 621 Determination of Total Cyanide.
W.A.TAYLOR
AND CO. 7 3 0 6 YORK RD. • BALTIMORE-4, MD.
150 A
Circle No. 3 on Readers' Service Card • ANALYTICAL CHEMISTRY
A
new methodology for continuous automatic determination of total cyanide is available. The method can be used as
GYRATHERM!.. FIELD-PROVEN MAGNETIC STIRRERS—HOT PLATES G Y R A T H E E M quickly puts salts into solution, speeds up chemical reactions, mixing and blending, stirs steadily over a wide range. There are separate, enclosed controls for stirring and heating. An Alnico magnet permits high torque stirring. H e a t s uniformly fast, yet insulated housing stays cool for handling. Eliminates stirring rods, glands, mantles, burner assemblies, stands, etc. BRONWILL N O . 25-1, 8-inch GYKATHERM 115.00 BRONWILL N O . 25-2, 6-inch GYHATHERM J u n i o r . . 75.00
BRONWILL SCIENTIFIC A Ol VI S I O N OF Wl
SCIENTIFIC.
INC
227 N. GOODMAN ST., ROCHESTER 1, N. Y.
Circle No. 32 on Readers' Service Card
