MANUFACTURERS' LITERATURE Electrobalance Techniques. Data sheet 10, 2 pages, describes recording Wilhelmy surface tension continuously and automatically. Data sheet 11, 22 pages, discusses making magnetic sus ceptibility measurements. Cahn In strument Co., 15505 Minnesota Ave., Paramount, Calif. 614 Laboratory Equipment. Catalog 65M contains 112 pages of information on metal laboratory equipment including base units, wall and counter storage cases, sink assemblies, titration tables, and other laboratory furniture items. Kewaunee Mfg. Co., 5090 S. Center St., Adrian, Mich. 49221. 615 Miniature Piping Systems. A 4-page bulletin introduces 2-, 3-, and 4-way microvalves and accessories for the construction of miniature gas-tight pip ing systems. Hamilton Co., P. O. Box 307, Whittier, Calif. 616 Column Chromatography. A 4-page Catalog 80A270 illustrates and de scribes column-type chromatographic equipment. Columns and end fittings as well as column extenders and eluent regulators are included. Fischer & Porter Co., Warminster, Pa. 617 Radiochemicals. A 26-page catalog lists about 700 radiochemical com pounds, a variety of precision refer ence sources, and describes the com pany's radioanalytical service. Chemtrac, 33 University Rd., Cambridge, Mass. 02138. 618 Gas Chromatography Equipment.
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4-page bulletin describes various gas chromatographic supplies including a column packing device, pressure regu lators, injection gaskets, etc. Illinois Instrument Group., Inc., 874 Third Ave., Des Plaines, 111. 60016. 619
ARE YOU GOING TO BUY AN ADVANCED OSMOMETER or later on just wish you had?
Standard Advanced Osmometer
Automatic Osmometer
Here's why ADVANCED is w o r l d leader in osmometry: STANDARD ADVANCED OSMOMETER ~ Laboratory proved most versatile, simplest to operate, most reliable. AUTOMATIC ADVANCED OSMOMETER - For large chemical laboratories. Performs completed unattended opera ttons on as many as 45 samples at a time. Reproducibility± 2 mOs. NANOLITER ADVANCED OSMOMETER — An improved, simplified version of the Ramsey-Brown apparatus. Measures melt ing point on samples as small as .1 milli microliter. HI-PRECISION RESEARCH ADVANCED OSMOMETER NEVV Reproducibility ± 0.3 milli degrees. Can be used for total body water determination by D2O dilution.
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