CHAS. LENTZ & SONS 
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No. 2116. Abbe Camera Lucida 
This is a more simplified form of the Abbe Camera Lucida in which, while the 
Abbe Prism is used as in the large Abbe Camera Lucida, the mirror is reduced 
in*size and is fixed. The prism and mirror are contained in a neat mounting 
which is attachable to the microscope tube by a clamping ring, and which may 
be swung back out of the way of the eyepiece, as shown in the figure. 
2116. Abbe Camera Lucida, modified form ^3 qq 
Polariscope 
2118. Polariscope, with large square face Nicol prisms, in case . . . $25 OO 
The polarizer is fixed in brass mounting and rotated by a 
large milled head. Polarizer has three selenites mounted in a 
revolving disk, having one clear Aperture. Analyzer is ar- 
ranged in brass mounting and can be revolved. It has society 
screw and can be attached to the nosepiece of the microscope. 
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