Megadiascope. 



1223 



Fig. 32. No. 9553-9558. 1 : 21 : 5. 



Fig. 33. No. 9559. 1 : 4. 



. 



3 

 CS 



s 



CH 



05 



cs 



I 



05 



.5 

 



S 



x 



2 projection oculars, two-fold magnification, with iris diaphragm (3); four-fold magnification, with- 

 out iris diaphragm (2); 4 compensating oculars with four-fold magnification (1). with eight-fold 

 magnification (1.10.0), with 12 fold magnification (1.10.0), with 18 -fold magnification 

 ( 1.5.0); 1 achromatic condenser, centrable, in holder ( 3.15.0); 2 spectacle lens condensers: double- 

 Irns. in extension tube (6 s. d.). single-lens (4 s. d.): 1 slider objective changer with 8 objective 

 sliders in holder (tube slider. 8s.; objective sliders, each 8s.; mount, 1 [ 4. 12. 0]): 5 insertion 

 tubes for rapidly changing the system of projection and microplanars (each 2 S. 6 d. [12 s. 6 d.]); insertion 

 tube for microscope objectives, with support for ocular screwed on (4 s. d.); 2 insertion supports without 

 thread, intended for oculars only, in order to facilitate the change from projection without ocular to 

 that employing an ocular (8 S. d.). 



Smaller and simpler optical outfits quoted for on application. 



Sliders, with bridge pieces, for erection of microscope on optical bench (F i g. 9) . . 



0. 15. 





If it be desired to work with the microscope vertical, the following are essential: 



9547. Arrangement for permitting of the microscope being placed 

 higher on the optical bench (Fig. 10) 3.4.0 



9548. Illuminating Mirror, in mount 0. 6. 



954!i. Erecting Mirror for fastening on the tube of the microscope stand 2. 0. 



9550. Small reversing prism, only to be used with oculars 1. 0. 



Observation of Solid and Liquid Crystals during their Existence. 



\Ve supply apparatus for the subjective observation of solid, fluid and liquid crystals, Pro- 

 jection microscopes with heating, cooling device and arrangement for supplying electi ic 

 current in accordance with special prospectus, sent post free on application. 



Projection of the Spectrum. 



9551. 1 Adjustable slit with micrometer screw, F i g. 12 j 1. 7. 



12 . 0.17.0 



Polarisation-Projection with the Projection-Polarisation Apparatus. 



9567. Projection-Polarisation Apparatus (Fig. 13, p. 1212), with large column of glass plates 

 (the plates being of the finest white, thin plate glass), with 20 mm. nicol, and with 

 arrangement for clamping preparations 



o. 



Cl. 298. 3844 



