. Bacteriological apparatus : pathological, biochemical. Scientific apparatus and instruments; Bacteriology; Chemical industry. 14335. 14340 14335 Microscope Substage Lamp—Bausch & Lomb. Is of unusual compact- ness and efficiency; complete outfit is placed under the microscope stage, the mirror being turned aside so that lamp sends its rays directly to the specimen; illuminant is small 15-watt Mazda lamp, 110-115 volts, direct or alternating current, connecting with any lamp socket; housing, of metal, has double, ventilated sides and top; deep- curve reflector fixed behind lamp bulb intens
. Bacteriological apparatus : pathological, biochemical. Scientific apparatus and instruments; Bacteriology; Chemical industry. 14335. 14340 14335 Microscope Substage Lamp—Bausch & Lomb. Is of unusual compact- ness and efficiency; complete outfit is placed under the microscope stage, the mirror being turned aside so that lamp sends its rays directly to the specimen; illuminant is small 15-watt Mazda lamp, 110-115 volts, direct or alternating current, connecting with any lamp socket; housing, of metal, has double, ventilated sides and top; deep- curve reflector fixed behind lamp bulb intensifies the illumination; furnished with five and one-half feet of silk-wound cord with plug, one blue glass and one ground glass Each Resistance Unit. For use with 15-watt, 110-volt lamp on 220-volt circuit Each 15-watt Lamp. Bulb only; for use with above lamp Each 14338 Microscope Substage Lamp—Bausch & Lomb. Same as No. 14340 above, but with Corning-Daylite Glass in place of blue and ground glasses Each 14340 Microscope Illuminator. Originally designed to be embedded in table top for obtaining direct light, but can also be used in ordinary way, on top of table, for deflected light; for this purpose a hinged leg support is provided, whcih can be folded out of the way when not in use; light is provided by 15-watt, gas-filled, concentrated filament bulb, with a reflector to concentrate and intensify it; housing is of metal, finished in black, with hinged cover to protect the daylight lens when not in use; dimensions of illuminator, over all: length, 100 mm; largest diameter, 64 mm; smallest diameter, 50 mm; to prevent overheating, ventilator holes are provided both at top and bottom, allowing continuous circulation of air, but no escapement of light except through daylight lens; cover is furnished for closing hole through table, when illuminator is removed Each 280 Please note that these images are extracted from scanned page images that may have
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectscientificapparatusa
