62 



SOME AMERICAN MAGIC LANTERNS 



[On. I 



FIG. 36 B. CONDENSER LENS NEXT THE 

 RADIANT IN ITS MOUNT. 



This is a'picture of the end of the condenser next the radiant of the lantern 

 shown in fig. 36 A. 



The lens is held in place by four thin metal supports, fastened at one end to 

 the condenser mount, and hooked over the edge of the condenser at the 

 other. The lens is considerably smaller than the condenser mount, thus 

 giving abundant room for expansion. 



/, 2, j, 4. The four thin metal strips for holding the lens in position. They 

 are white where they hook over the edge of the lens. 



c End view of the metal tube supporting the condenser. 



(The white spots in the condenser face are mirror images of the window's near 

 where the picture was taken). 



FIG. 37. MAGIC LANTERN WITH TWO-LENS 

 CONDENSER, AND HAND-FEED ARC LAMP. 



(Portable Sciopticon. Cut loaned by the Mclutosh Stereopticon Co.). 



