300 PROJECTION MICROSCOPES ON THE MARKET fCn. IX 



FIG. 164. PROJECTION MICROSCOPE, MAGIC LANTERN AND MEDIOSCOPE 



WITH SINGLE RADIANT. 

 (Cut loaned by Williams, Broivii & Earle). 



The arc lamp and condenser move laterally so that each instrument can he 

 illuminated at will. 



A The medioscope is an achromatic combination of large aperture for 

 objects of large size, but smaller than lantern slides. 



B Projection microscope with large projection ocular. It has a water-cell 

 (D) in the path of the light. The arc lamp and condenser (N O P) are in place 

 for micro-projection. 



C Projection objective for lantern slides. 



FIG. 1 6s. 



NE\V REFLECTING LANTERN WITH THE PROJECTION 

 MICROSCOPE. 



