MANUFACTURERS' LITERATURE phase contrast objective of medium power equipped with a cooling device. In determining melting points, tempera tures are measured by use of test sub stances of known melting points. 19 Electroanalysis Apparatus A single-position electroanalyzer has been designed by Eberbach Corp. for use in laboratories where a limited num ber of quantitative metal analyses are made or for demonstration purposes. Determinations involving stationary electrodes or a rotating anode can be performed. The apparatus consists of four inde pendent elements: an electrode holder and cell support, a d.c. power supply delivering 1 to 5 amperes, a stirrer operating at fixed speeds of 500, 750, or 1000 r.p.m., and a heavy duty support with clamps for mounting the stirrer and electrode holder. When no analyses are in process, support, power supply, and stirrer can be used elsewhere in the laboratory. 20
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CHROMATOGRAPHY CATALOG
MANUFACTURERS' LITERATURE Gas Analyzers. Folder of 4 pages de scribes operation and applications of industrial gas analyzers for thermal con ductivity measurements. Charles Engelhard, Inc. 21 Flexibility Tester. Two-page sheet de scribes flexibility tester for organic finishes and its application. Gardner Laboratory, Inc. (Bull. IBS). 22 Electrolytic Conductivity Indicators. Four-page data sheet describes use and lists operating features of portable indi cators for electrolytic conductivity meas urements in plant or laboratory. Leeds & Northrup Co. (Data Sheet E-95[l\). 23 Electrophoresis Apparatus. Eightpage brochure describes electrophoresis techniques and a compact electrophore sis instrument that utilizes a Land camera for making finished pattern prints in 60 seconds. The PerkinElmer Corp. (Model 38-A). 24 Electrophoresis Apparatus. Folder of 4 pages describes features of a paper strip electrophoresis apparatus fabri cated from clear, transparent methacrylate plastic. Standard Scientific Sup ply Corp. (Wurm-Standard Apparatus). 25 Polarographic Measurements. Twopage data sheet describes calibrating unit and other equipment for manual For further information, see coupon on page 45 A VOLUME
26, NO. 9, S E P T E M B E R
Use this guide for looking up every type of equipment for experimental chromatography. In 36 pages, it fully illustrates, describes, and prices equipment,
apparatus, and supplies for chroma tography, including solvents and adsorbents. You'll find it most handy for fulfill ing your requirements this fall.
COMPLETE... AUTHORITATIVE... Leading makes of equipment are presented in various price ranges, especially chosen to facilitate selec tions within your budget. Included are many of the new items never before listed. And to save you time, this new
FULLY REFERENCED
catalog is fully and authoritatively documented with references. Send for your copy n o w . There's no cost or obligation. Just use the coupon below, or call your nearest WILL office-warehouse today.
Clip and mail Ihis coupon today WILL Corporation, P.O. Box 1050, Rochester 3, Ν. Υ. Gentlemen: Please send me the new WILL Chromatography Catalog. Name
Department
Organization Address City
Zone
Will
Slate.
C Os R PORATION ubsidiaries
and
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in
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ROCHESTER 3, Ν. Y. · ATLANTA 1, GA. · NEW YORK 12, N. Y. · BALTIMORE 3, MD. · BUFFALO 5, Ν. Υ. For further
1954
information, circle number 53 A on Readers' Service
Card, page 45 A
53 A
