MANUFACTURERS' LITERATURE Jena Review, No. 3, 1966. Feature articles discuss laser micro-spectral analysis, high vacuum measuring equip ment, electro-optical length measuring devices, and fine tissue microscopy for cancer diagnosis. Carl Zeiss, Inc., 444 Fifth Ave., Ν. Ύ., Ν. Υ. 10018 Arcs and Sparks, Vol. 11, No. 3. The cover story deals with the new Na tional Bureau of Standards facilities in Gaithersburg, Maryland. Ultra Car bon Corp., P. O. Box 747, Bay City, Mich. Instrument Mews, Vol. 17, No. 1. This periodical contains articles on the atomic absorption analysis of mineral oils, the characterization of fats by dif ferential scanning calorimetry, and the use of polarization measurements in in frared spectroscopy. Perkin-Elmer Corp., Main Ave., Norwalk, Conn. 06852 P©pe Pocers, October 1966. This is sue gives helpful laboratory tips on high vacuum stopcocks, repairing vac uum leaks, storing noxious chemicals, and identifying plastic films. Descrip tions are included on the company's new liquiphase extractor, aqua-jet wa ter aspirator, and a new line of coil condensers. Pope Scientific, Inc., 13600 W. Reichert Ave., Menomonee Falls, Wis. 53052 Labifrems, Special Issue, No. 4. Fea tured in this 12-page catalog are items on a variety of new laboratory appara tus, including the Corning AG-ΙΑ wa ter still, a high-purity, glass-distilled system with immersion heater. Also mentioned arc the Barnstead scale ar rester system, for scale retardation and the Manostat Dilutrol diluting pipette. Greiner Scientific Corp., 22 N. Moore St., N. Y., N. Y. 10013 Thermal An-aiysis Newsletter, No. 6. This issue is devoted to purity determi nations by differential scanning calorim etry and the operation of the com pany's DSC-1 and DSC-1B instru ments. Perkin-Elmer Corp., Main Ave., Norwalk, Conn. 06852 S/P Review, September-October 1966. This issue describes the Blue M line of temperature control equipment and the new Mettler air pollution filter weigh ing chamber. Scientific Products, 1210 Leon PL, Evanston, 111. 60201 laboratory Supply News, No. 8. This illustrated booklet catalogs a wide variety of laboratory equipment and devices. Laboratory Supplies Co., Inc., P. O. Box 332, East Station, Yonkers, Ν. Υ. 10704
R e a d y . . . every t i m e y o u need o n e ! A N A L G E N E " FILTER UNIT* Sterile... completely assembled When you're ready for microfiltration or microanalysis, take a sterile Filter Unit off the shelf, and re move the protective bag. When you're finished . . . throw the unit away. No need to spend hours cleaning, assembling, autoclaving. And there's no risk of damaging costly membranes. This membrane filter assembly contains everything you n e e d filter cup, cover, support plate, porous support, 115 ml capacity suction flask and Metricelt mem brane filter disc. It's always ready . . . clean and sterile. Keep a sup ply of handy 12-unit shelf packs on hand. (Each pack includes an adapter for attaching to the vacu um tubing and connecting to each successive Filter Unit.)
The Nalgene Filter Unit is avail able with either a plain membrane —0.20 micron porosity, or a grid membrane—0.45 micron porosity. Prices. . . . $9.00 per shelf pack of 12 $54.00 per case of 72 Consumer discounts: 1 case . .10% 5 cases. .15% 20 cases. . 20%
Ask your lab supply dealer for brochure N-40, or write Dept. 1 1 3 6 , T h e N a l g e Co., Inc., 7 5 Panorama Creek Drive, Rochester, New York 14625. *Patent applied for fTrademark of Gelman Instrument Company, Ann Arbor, Michigan
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NALGENE & THE
LABWARE
N A L G E CO., INC.
a subsidiary of Ritter Pfaudler Cprporation
Circle No. 64 on Readers' Service Card
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