Bausch & Lomb Optical Company - Analytical Chemistry (ACS

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Greater Dispersion WHERE YOU NEED IT MOST

JLHE chart tells the story. Greater dispersion in the ultra-violet range with the Bausch & Lomb Large Littrow than with any other spectrograph. That's where it counts in helping you solve most of your spectrograph problems more easily, more accurately. You get sharp, clear identifying lines from 2200A to 3500A—the range where most of the major elements are found . . . the range where poor separation of spectral lines prohibits satisfactory work with instruments of lesser linear dispersion. Additional advantages include: sturdy construction, insuring rigidity, permanent alignment and adjustment; two readily interchangeable optical systems, providing a wavelength range of 2100A to 10,000 A. Bausch & Lomb optical and mechanical achievement makes the Large Littrow Spectrograph the most satisfactory single instrument yet devised to meet all your spectro-analytical problems.

To Help You Get Greater Accuracy, Efficiency and Safety in Your Spectrographs Laboratory...

ARC AND SPARK STAND

ELECTRODE SHAPER

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for information and demonstration. Bausch & Lomb Optical Company, 609-L St. Paul Street, Rochester 2, New York.

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