Microscopes and Accessory Apparatus Part 4

3. =Large microscope=, inclinable, with hinged joint and clamping lever and fitted with round revolving centering stage. Coa.r.s.e adjustment by rack and pinion, new fine adjustment by micrometer-screw, the head of which is graduated each division = 1/1000 mm. Draw-tube with (see page 25-26) millimetre scale. Large illuminating apparatus with swing-out condenser and cylinder iris diaphragm (ill.u.s.trated on page 21).

Mechanical stage, No. 98.

Triple nose-piece.

Drawing eye-piece, No. 93.

Micrometer eye-piece, No. 84.

Achromatic objectives Nos. 1, 3, 6.

Oil-Immersion 1/12, N. A. 1,30.

Eye-pieces 0, I, III, IV, V.

Magnifications 12-1300 =236.--=

4. =The same= stand and illuminating apparatus.

Triple nose-piece.

Micrometer eye-piece, No. 84.

Drawing eye-piece, No. 93.

Objectives 2, 4, 6, Oil-Immersion 1/12, N. A. 1,30.

Eye-pieces I, III, IV, V.

Magnifications 33-1300 =210.--=

=The stand= and illuminating apparatus without objectives, oculars and nose-piece =112.--=

[Ill.u.s.tration: Stand Ia.]

=Stand Ia.=

4a. =Large Microscope=, of smaller size than Stand I, fitted with horseshoe foot. The stand is inclinable and fitted with revolving centering stage, coa.r.s.e adjustment by rack and pinion, fine adjustment by micrometer screw with scale. Draw-tube with millimetre scale. Large Illuminating Apparatus (Cf. p. 22, b) with rack and pinion, and iris-diaphragm with oblique movement. The cylinder-diaphragm and condenser may be readily subst.i.tuted for one another.

Triple nose-piece.

Objectives 2, 4, 6, Oil-Immersion 1/12, N. A. 1,30.

Eye-pieces I, III, IV, V.

Magnifications 33-1300 =160.--=

4b. =The same= with Illuminating Apparatus.

Triple nose-piece.

Objectives 3, 6, Oil-Immersion 1/12, N. A. 1,30.

Eye-pieces I, III, IV.

Magnifications 60-1000 =148.--=

4c. =The same= with Illuminating Apparatus.

Triple nose-piece.

Objectives 3, 6, Oil-Immersion 1/10, N. A. 1,30.

Eye-pieces II and IV.

Magnifications 70-730 =136.--=

=Stand= with Illuminating Apparatus, but without objectives, eye-pieces and nose-piece =76.--=

=The same= with Illuminating Apparatus, Swing-out Condenser and Cylinder Iris-diaphragm (p. 20, a) =82.--=

Mechanical stage No. 98 can be fitted to this stand; price =28.--=

[Ill.u.s.tration: Stand Ia with English foot.]

=Stand Ia= with English foot.

4d. =Large Microscope= differing from the foregoing (Ia) stand only in being provided with an English foot, which makes the stand somewhat steadier and lighter. The prices and combinations are otherwise the same.

Dr. P. G. Unna of Hamburg uses this microscope in his laboratory.

The stage revolves and centres. The illuminating apparatus is that described on p. 22, b.

Triple nose-piece.

Objectives 2, 4, 6, Oil-Immersion 1/12, N. A. 1,30.

Eye-pieces I, III, IV, V.

Magnifications 33-1300 =160.--=

4e. =The same= with the illuminating apparatus.

Triple nose-piece.

Objectives 3, 6, Oil-Immersion 1/12, N. A. 1,30.

Eye-pieces I, III, IV.

Magnifications 60-1000 =148.--=

4f. =The same= with illuminating apparatus.

Triple nose-piece.

Objectives 3, 6, Oil-Immersion 1/10, N. A. 1,30.

Eye-pieces II, IV.

Magnifications 70-730 =136.--=

=The stand= with illuminating apparatus, but without objectives, oculars and nose-piece =76.--=

=The stand= with swing-out condenser (p. 20, a) =82.--=

Mechanical stage No. 98 can be fitted to this stand; price =28.--=

[Ill.u.s.tration: Stand Ib.]

=Stand Ib.=

5. =Large Microscope=, which differs from Ia only in the stage. The stage is fixed and square. The stand is inclinable and has a hinged joint and clamping lever.

Draw-tube with millimetre scale. Coa.r.s.e adjustment by rack and pinion, fine adjustment by micrometer screw with graduated head. Illuminating Apparatus, same as Ia (p. 22, b).

Triple nose-piece.

Objectives 3, 6, Oil-Immersion 1/12, N. A. 1,30.

Eye-pieces I, III, IV.

Magnifications 60-1000 =142.--=

6. =The same= with simplified Illuminating Apparatus (p. 22, c).

Triple nose-piece.

Objectives 3, 6, Oil-Immersion 1/10, N. A. 1,30.

Eye-pieces I, III, IV.

Magnifications 60-730 =120.--=

7. =The same= without Illuminating Apparatus, with Cylinder-diaphragm.

Double nose-piece.