Laboratory equipment and supplies, namely, Crucibles, cupels, petri dishes, funnels, small sample containers and their associated closures, seals and stoppers of plastic, rubber, elastomer and glass, for non-medical laboratory testing; Glassware for scientific experiments in laboratories, namely tubes, flasks, measuring cylinders, beakers and burettes and their associated closures, seals and stoppers of plastic, rubber, elastomer and glass; Microscope slides and microscope slides cover glass; Small volume gas and liquids flow control machines and instruments, namely, dispensers that count or measure output for use with scientific experiment liquids and gases, meters, indicators, and filters for scientific experiments in non-medical laboratories; Laboratory wear, namely, protective gloves, face-protective shields and protective eyewear; Pipettes, pipette tips, pipette racks, pipette controllers, pipette fillers; Analytical balances and precision scales, and associated component platters, trays and dishes, calibration weights for use with analytical balances and precision scales; Magnetic agitator for laboratory use, and associated component magnetic stir bars and stir bar retrievers; Non-medical laboratory microscopes and their associated microscope stands and microscope illuminating devices; Hand-operated laboratory tools for manipulating laboratory samples; Bags, cases, stands and racks specially adapted for holding or carrying non-medical laboratory equipment; Scientific apparatus for measurement and calibration of non-medical laboratory equipment, non-medical scientific samples and non-medical laboratory processes, namely, Measuring apparatus for temperature and humidity levels in gases and solid substances, distance and dimension measuring meters and graduated measuring rulers, light meters, and electrical meters; Scientific apparatus and instruments for cell culture growth and measurements, and the parts and fittings therefor, namely, homogenizers, cell culture dishes, tissue culture flasks, microplates, also known as multi-well arrays, vials, incubators, cell culture rollers and shakers, and colony counters; Scientific apparatus and instruments for DNA, RNA and proteins preparation and relative measurements, and the parts and fittings therefor, namely, centrifuges, capillary and gel electrophoresis apparatus, DNA-RNA hybridizers, and gel imaging transilluminators