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laboratory burners

scientific apparatus and instruments; namely, acid carboys, air meters and pumps, alkalimeters, annealing cups, anvils, hoffman apparatus, analytical balances, assay balances, pulp balances, balance fans, balance rests, balance scoops, balance watch glasses, analytical balance weights, analytical balance riders, barometers, battery binding posts, battery jars, beakers, bell jars, blowers, blow-pipes, reagent bottles, aspirator bottles, dropping bottles, ether bottles, oil sample bottles, specific gravity bottles, washing bottles, weighing bottles, woulff bottles, burettes, automatic burettes, calorimeters, casseroles, cement apparatus, calcium chloride jars, calcium chloride tubes, color tubes, clamps, pinchcocks, clamp holders, cooling condensers, cork borers, crucibles, crushers, cylinders, desiccators, dishes, distilling apparatus, drying ovens, extraction apparatus, filter presses, filter paper, flasks, forceps, funnels, funnel tubes, furnaces, gas apparatus, gas pipettes, gas generators, glass tubing, asbestos and rubber laboratory gloves, graduates, hydrometers, hygrometers, labels, magnifying glasses, measures, milk bottles, mortars, muffles, kjeldahl apparatus, kjeldahl bulbs, nitrometers, oil testers, percolators, pipettes, automatic pipettes, platinum crucibles, polariscopes, potash bulbs, tincture presses, refractometers, respirators, retorts, concentric water bath and laboratory support rings, rubber bulbs, rubber policemen, rubber stoppers, rubber tubing, sand baths, sieves, spatulas, spectroscopes, stopcocks, supports, test tubes, thermometers, tongs, triangles, tripods, troughs, T-tubes, water baths, and wire gauze