No. 54 401. 



Microscopes. 



535 



54 394. 1 : 3. 



54 396. 1 : 3. 



54400. 1:3. 



54.396. Medium Microscope, Stand Ha, Figure, with joint for tilting, large rectangular 

 fixed stage, coarse and fine tube focussing, millimetre graduation on draw tube, Abbe 

 Illuminating Apparatus with iris diaphragm, Optical Outfit for 26 1400 diameters, 

 together with box 



The coarse tube focussing is effected by rack and pinion, and the fine by low-pitch micrometer 

 screw. The Optical Outfit comprises 3 achromatic objectives, 1 homogeneous oil-immersion, 1 triple 

 revolving nose-piece and 3 Huyghenian oculars. 



54.397. - - idem, with simple Illuminating Apparatus and simpler Optical Outfit for 60 to 

 800 diameters 



54.398. Medium Microscope, Stand C, cf. Fig. 54,392, with joint for tilting, rectangiilar fixed 

 stage, coarse and fine tube focussing, millimetre graduation on draw tube, Abbe Illu- 

 minating Apparatus, Optical Outfit for 60 1400 diameters, together with box . . . 



The coarse tube focussing is effected by rack and pinion, and the fine by worm and worm wheel. 

 The Optical Outfit comprises 2 achromatic objectives, 1 homogenous oil-immersion, 1 triple revolving 

 nose-piece, and 3 Huyghenian oculars. 



54.399. - - idem, with simple Illuminating Apparatus with iris diaphragm, and simpler 

 Optical Outfit, for 60 800 diameters 



54.400. Medium Microscope, Stand lid, Figure, with joint for tilting, large rectangular 

 fixed stage, coarse and fine tube focussing, millimetre graduation on draw tube, Abbe 

 Illuminating Apparatus with iris diaphragm, can be f ocussed under the stage ; Optical 

 Outfit for 60 1400 diameters, and box 



The coarse tube focussing is effected by rack and pinion, and the fine by small-pitch micro- 

 meter screw. The Optical Outfit comprises 2 achromatic objectives, 1 homogeneous oil-immersion 

 objective, 1 triple nose-piece and 3 Huyghenian oculars. 



54,401. -- idem, with simple Illuminating Apparatus, and simpler Optical Outfit for 



60730 diameters . 12. 0. 



s. d. 



18. 5.0 



16. 5.0 



16. 10. 



15. 0.0 



15. O.'O 



Cl. 5940, 5935, 5939. 



