26 MICROSCOPE SLIDES, MICROSCOPE SLIDE CONTAINERS, SUBSTAGE LAMPS FOR MICROSCOPES, MAGNIFYING GLASSES, LABORATORY TONGS, LABORATORY TALLYING COUNTERS, BALANCES, AND, AS DESIGNED FOR SCIENTIFIC USES, FOR RUBBER TUBING, SCREW COMPRESSORS FOR RUBBER TUBING, CENTRIFUGES-HAND AND ELECTRIC, AND TUNING FORKS