Simplex Microscope

All classes of microscopic examination do not require an instrument of the highest magnification, with its consequent elaboration and high cost. There is much work where a simple instrument of moderate power is all that is necessary. The Simplex microscope meets this requirement. Where a simple microscope is required which can be readily set up and manipulated, the Simplex will be found a most satisfactory instrument. Although simple in design, it is made with the same precision of workmanship as our standard instruments. It is of moderate size, the illustration being approximately one-third size.

In the No. 75, the base and the limb are a solid construction and of sufficient size and weight to ensure the instrument standing firmly, either in its vertical or inclined position.

The focussing adjustment is operated by a large milled ring placed in a convenient position accessible to either hand. The stage measures 34 in. X 3J in., and is provided with stage clips for holding the object.

The drawtube is adjustable in length by means of which the magnifying power is changed.

The range of magnifying powers obtainable is X35 to x200. The drawtube is engraved with lines as indicated in diagram, and the following table gives the magnifying powers with the drawtube set at these positions and with the two eyepieces.

Drawtube set at position. X 6 Eyepiece. X15 Eyepiece.

A 35 120

B 55 150

C 75 200

Intermediate magnifying powers are obtained at intermediate positions. The object glass and eyepieces are of the standard series, and the optical performance is, therefore, equal to that of our larger instruments, so that clear and distinct definition, with good field of view, is obtained.

The instrument is contained in a strong case, which measures 9| in. X 6| in. X 5£ in.

In No. 76 the limb is fitted on to a horseshoe base without stage so that the microscope can be place direct upon a large object or surface. The focussing adjustments and the magnifying powers are similar to the No. 75 as described above.

No. 75 Simplex microscope complete, without case............................. £4 10 0

No. 76 Simplex microscope complete, with case ... ... ... ... ... 417 6

No. 77 Simplex microscope on horse-shoe base, without case .................. 440

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

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