D. Appliances for microscopic examination 

 in polarized light. 



Polarizers and Analyzers, 



As a rule we supply polarizers with end-surfaces inclined to the optical axis 

 of the microscope. That having an aperture of 10 mm - - Polarizer I - - is 



intended for use with the ABBE illuminating apparatus, and the mount of the 

 prism is flanged so as to fit into the diaphragm-carrier of the condenser, Fig. 57. 

 It may be fixed there - if necessary - - by means of a clamping ring. Selenite 

 and mica films may be placed upon the plate-shaped rim of the mount. 



Fig. 57. 

 Polarizer I, No. 160. 



(Full Size.) 



The second form of polarizer - - Polarizer II - - has an aperture of 8 mm. 

 It is always supplied in conjunction with the condenser system for small stands, 

 No. 41, but without iris-diaphragm, and it fits in the same way into the sliding 

 sleeve of the cylinder-diaphragm. 



Prices : Code- wo rds : 



No. 160: Polarizer I Marks 22. . Pelicula. 



161: II with condenser of num. aperture i.o 



(without iris-diaphragm) ... ,, 25. . Pelito. 



