. Beck microscopes. Microscopes. No. 3515. No. 3305. Mechanical stage ^6 0 0 This stage has both horizontal and vertical motions actuated by milled heads. The rack employed is very finely cut, which gives an exceed- ingly delicate and smooth motion. In the horizontal direction, the travel is 2^ in. and in the vertical 1 in. This type of stage is supphed the Nos. 22 and 29 London microscopes and to the models of the angular and combined binocular and monocular microscope which have plain square stages. It can be fitted to other instruments but in some instances a small charge for fitting is ent
. Beck microscopes. Microscopes. No. 3515. No. 3305. Mechanical stage ^6 0 0 This stage has both horizontal and vertical motions actuated by milled heads. The rack employed is very finely cut, which gives an exceed- ingly delicate and smooth motion. In the horizontal direction, the travel is 2^ in. and in the vertical 1 in. This type of stage is supphed the Nos. 22 and 29 London microscopes and to the models of the angular and combined binocular and monocular microscope which have plain square stages. It can be fitted to other instruments but in some instances a small charge for fitting is entailed. No. 3306. Concentric rotating mechanical stage, suitable for microscopes No. 29 H 1341, 3192 3876 £12 0 d This stage has adjustable stops, so that a slide of any length from 4 in. to IJ in. can be held. It has a spring to hold the slide down to the stage, which can be turned aside when not required. It has two concentric milled heads, so mounted that there is no tendency for the motion of one to affect the other. The horizontal range is 3 in., the vertical motion 1 in. The stage is supplied with scales and ver- niers in both directiors for finding specimens or making measurements. When this stage is lifted to existing instruments the standard substage apparatus must be made slightly longer to accommodate further extra thickness. No. 330(S No. 3418. Diamond object marker £2 10 0 This fits into the microscope like an object glass and has a diamond set into it, so that a circle can be scribed upon the cover glass around any portion of the object which it is desired to mark. The diameter of the circle is adjustable. 84. 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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