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HOW MUCH
heat DO YOU NEED? Gas is used in the laboratory for all kinds of heating, from micro-fusions of a few crystals of unknown precipitate to U-bends in 25 mm tubing. (And let's not forget the beaker of morn ing coffee! ) For general purposes, the patented Fisher Burner is the most useful and efficient gas-burn ing unit the laboratory can have, but for special applications the Fisher Catalog lists and de scribes forty-seven burners, each with different characteristics and special features. Why not select the apparatus that's best suited for your individual needs? Whether it's burners or thermometers, spatulas, stoppers or highly specialized instruments . . .
your best source is your Fisher Catalog
FISHER OFP SCIENTIFIC Boston
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America's Largest Manufacturer-Distributer of Laboratory Appliances and Reagent Chemicals For further information, circle "2nd Cover" on Readers' Service Card, page 61 A