THE PROBLEMS
MANUFACTURERS' LITERATURE
OF
T.L.C. THE PLATEMAKER
Glassware. Grease-free glass components for moderate and high vacuum and for preparation of organic formulations are offered in this 12-page catalog. Fusion, Inc., 9681 Allen Ave., Rosemont, 111. 60018 609
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Spectrometers. Czerny-Turner mount 3 / 4 meter scanning spectrometers and accessories are described and illustrated in this 12-page booklet. Spex Industries, Inc., Box 798, Metuehen, N. J. 08840 610
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ANALTECH!
ANALTECH, INC. 1 0 0 S. J U S T I S 0 N S T R E E T WILMINGTON, DELAWARE 19801 O L Y M P I A 6 - 4 4 3 6 ( 3 0 2 ) Circle No. 90 on Readers' Service Card 122 A
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ISCO makes the most compact fraction collector available.
ANALYTICAL CHEMISTRY
So w h a t ?
Retrieval of IR Spectra. Computerized Infrared Retrieval Search Systems is a 26-page brochure describing a comprehensive computerized system for retrieving infrared spectral data. Sadtler Research Laboratories, Inc., 3316 Spring Garden St., Philadelphia, Pa. 19104 611 Chemical Catalog. The three sections in this catalog feature biochemicals, gas chromatography reagents and analytical systems, and fine organic?. Regis Chemical Co., 1101 N. Franklin St., Chicago, 111. 60610 612 Student Kit. This four-page brochure describes a compact plastic labware kit for students. The kit contains 28 items including beakers, graduated cylinders, flasks, and funnels. Nalge Co., 75 Panorama Creek Dr., Rochester, Ν. Υ. 14625 613 Labware Catalog. Glass to glass con nectors, flowmeters, dilutors, and other items by Manostat arc described and illustrated in this 1968 catalog, 32 pages. Greiner Scientific Corp., 20 N. Moore St., New York, Ν. Υ. 10013 614 Polarizing Microscopes. Catalog 31130, 12 pages, discusses the company's line of polarizing microscopes and in cludes accessories, auxiliary equipment, and a list of references on dispersion staining techniques. Bausch & Lomb, Rochester, X. Y. 14602 615 Vacuum Pumping Systems. Bulletin No. 3191.1, 12 pages, describes the Kinney mechanical booster/liquid jet vacuum systems which are capable of handling large quantities of condensable vapors and are insensitive to contami nation. Kinney Vacuum Division, The Xew York Air"Brake Co., 3529 Wash ington St., Boston, Mass. 02130 616
90 tubes in 108 sq. in.
We've had the most compact fraction collector all along, but we've never bragged about it. We would rather tell you about our Model AT's reliability, and how versatile it is. You can choose from seven combinations of time and volumetric control and add on later if you change your mind. Lift-off reels hold up to 180 test tubes or 90 scintillation vials. You don't have to put the con troller under the drive base. If you are in a cramped cold room, you can put it on a shelf, under the work table, or even outside. ISCO has complete fraction col lectors from $220.00. Send for brochure FC31F.
INSTRUMENTATION S P E C I A L T I E S CO., INC. 5624 SEWARD AVE. LINCOLN, NEBR. 68507
See ACS Laboratory Guide for All Products/Sales Office Circle No. 7 on Readers' Service Card