No. 3515. Mechanical stage £10 10 0

The construction of this stage can be seen from the illustration. It has a travel in the horizontal direction of 75 m/m. and in the vertical direction 30 m/m. It is fitted with scales and verniers for both movements. Microscopes, Angular models Nos. 3878 and 3879 are regularly fitted with this stage. It can also be supplied to Nos 29, B, D, and C, and Combined binocular and monocular Nos. 1335, 1336, 1337

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 exceedingly delicate and smooth motion. In the horizontal direction, the travel is 2iin. and in the vertical 1 in. This type of stage is supplied 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. 3305.

No. 33ub. Loncentnc rotating mechanical stage,

29 H, 1341, 3192, ... £12 0 0

suitable for microscopes No. 3876

This stage has adjustable stops, so that a slide of any length from 4 in. to 1J 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 verniers in both directiors for finding specimens or making measurements. When this stage is fitted to existing instruments the standard substage apparatus must be made slightly longer to accommodate further extra thickness.

No. 3306,

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

No 3418

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La langue de reconnaissance de l'OCR est l'Anglais.

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