. Bacteriological apparatus : pathological, biochemical. Scientific apparatus and instruments; Bacteriology; Chemical industry. 14150-A 14135 14150-B 14135 Mechanical Stage—Bausch & Lomb. For use on microscopes with square cornered stages; clamp is adjustable, front portion having top plate for instant leveling of stage; adjustment is by rack and pinion, giving equal speeds in both movements; slide-holder is provided with adjustable stops; main parts neatly finished in black lacquer to prevent reflections, scales are engraved on fine German silver__Each 14138 Micrometer Disc, Eyepiec
. Bacteriological apparatus : pathological, biochemical. Scientific apparatus and instruments; Bacteriology; Chemical industry. 14150-A 14135 14150-B 14135 Mechanical Stage—Bausch & Lomb. For use on microscopes with square cornered stages; clamp is adjustable, front portion having top plate for instant leveling of stage; adjustment is by rack and pinion, giving equal speeds in both movements; slide-holder is provided with adjustable stops; main parts neatly finished in black lacquer to prevent reflections, scales are engraved on fine German silver__Each 14138 Micrometer Disc, Eyepiece, Whipple's, having a large square divided into four, each of which is subdivided into twenty-five squares, and one of these again subdivided into twenty-five; used for counting bacteria Each 14140 Micrometer Disc for the examination of milk smears, having a circle 8 mm in diameter, with cross lines dividing it into quadrants Each 14150 14155 Micrometer Eyepieces—Bausch & Lomb. Furnished in two forms, one with fixed and the other with movable scale. Scale is divided into tenths of a millimeter, with every fifth and tenth line longer than the others and every tenth line numbered. Magnification Scale No. A B Fixed Movable Each Stage Micrometers—Bausch & Lomb. Consist of slides, measuring 75x25 mm, upon which scales are mounted. Material Ruled to No. A Glass and mm B Glass and in. C Metal and mm Each 14160 14160 Engravers' Glass—Bausch & Lomb. Consists of two plano-convex lenses in vulcanite mounting; gives large flat field, with low magnification, and is especially suited for work with large dissec- tions; should be used with a lens holder; equivalent focus, 75 mm. Valuable for counting colonies; diameter, 40 mm; magnification, Each 270. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration an
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectscientificapparatusa
