aloe
FOR MAXIMUM UTILITY...MINIMUM MAINTENANCE
moduline
STEEL LABORATORY FURNITURE Flexibility . . . permanence . . . economy. These are prime reasons Aloe M O D U L I N E unitized steel furniture finds so much favor with architects and builders of laboratories. Aloe M O D U L I N E is flexible in function and arrangement, permanent in its all-welded construction, economical in initial cost and upkeep. For educational, research, industrial laboratories . . . wherever the best lal Juratory furniture is called for . . . more and more builders specify Aloe M O D U L I N E . Write for free M O D U L I N E brochure. Dept.. 124
aloe
scientific
DIVISION OF A. S. ALOE COMPANY
5655 Kingsbury, St. Louis 12, Mo. 14 divisions coast-to-coast For further information, circle number 56 A-1 on Readers' Service Card, page 83 A
SPECTROPHOTOMETER PMQ II MADE IN WEST GERMANY
Essential components permit individual use for special research projects. Light source and holder for cells widely separated. No temperature influence. Direct reading—no compensation method. Rapid location of absorption maxima and minima Repeat settings of smallest slit widths possible due to new design friction-free slit mechanism. Projected wave-length and transmittance scales (4 ft.) allow parallax-free reading. Built-in chopper diaphragm eliminates dark current and assures strict linearity. Adjustable damping device for galvanometer reduces fluctuation at highest amplification. Direct operation on 1 10-volt A.C. No battery necessary. Measuring range 200 to 2 5 0 0 π\μ.
Write for detailed specifications
CARL ZEISS, INC. 485
FIFTH AVENUE, NEW YORK
17, Ν. Υ.
For further information, circle number 56 A-2 on Readers' Service Card, page 83 A
56 A
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ANALYTICAL CHEMISTRY
GUARANTEED UNINTERRUPTED REPAIR SERVICE
