. Beck microscopes. Microscopes. No. No. 3421. Beck compressor. The Beck compressor is a 3 X 1 in. plate of glass at one end of which a circular pillar is fixed. This pillar carries an arm which holds a cover glass. The arm is raised or lowered by a screw at the top of the pillar, which mechanically varies the space for holding the specimen. The arm carrying the thin glass can be swung to one side for placing the specimen in position and then lowered to the required amount ... No. 3320. Rousellet's compressor. This is some- what similar to the Beck compressor but the 3x1 plate is brass
. Beck microscopes. Microscopes. No. No. 3421. Beck compressor. The Beck compressor is a 3 X 1 in. plate of glass at one end of which a circular pillar is fixed. This pillar carries an arm which holds a cover glass. The arm is raised or lowered by a screw at the top of the pillar, which mechanically varies the space for holding the specimen. The arm carrying the thin glass can be swung to one side for placing the specimen in position and then lowered to the required amount ... No. 3320. Rousellet's compressor. This is some- what similar to the Beck compressor but the 3x1 plate is brass with a circular glass plate in the centre, and the upper glass is cemented to the brass arm ... No. 3321. Rousellet's live box. This is similar in construction to No. 3420 but the glass plate is level with the stage and it is therefore suitable for use with substage apparatus No. 3416. Beck glass trough, consisting of a 3x1 glass slide which has two clips and clamping screws. By means of these, thick or thin cover plates are held on to the 3x1 slide with a separating band formed by cutting an ordinary rubber band in half. Various thicknesses of separating bands may be used 1 1 0 1 1 0 0 17 6 0 9 0 No. 3422. Stage forceps. A 3 x 1 plate carries a metal fitting holding a short revolving rod with a pair of spring forceps atone end and a tube with cork at the other 0 14 No. 3422. 98. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Beck (R. & J. ) Ltd. London : Beck
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