INDEX 



315 



Zeiss, dry achromatic condenser, IGO 

 early objectives, 199 

 excentric collar, 81 

 fine motion, 133 

 Greenoiigh binocular, 190 

 Greenough reflecting prisms, 43 

 ground glass, 70 



for uncorrected condenser, 85 

 high dry objectives with concave 



front, 128 

 homals, 149 



Leuchtbild condenser, 202 

 matt glass below condenser, 73 

 metallurgical objectives, 157 

 monobjective binocular, 46, 47, 48 

 monobromide of naphthalin objec- 

 tive, 104 



Zeiss, movement of mechanical 

 stage, 139 



nosepiece, 141, 181 



objective changers, 126, 141 



objective lenses in rings, 203 



orthoscopic eyepieces, 148 



Phoku camera, 166 



prisms of binocular, 22 



projection eyepieces, 149 



sleeve with tightener, 81 



spectacle magnifiers, 22 



twin-objective binocular, origin, 

 201 "^ 



water-immersion objectives, 119, 

 132 

 Zinc etching, drawing for, 163 

 Zsigmondy, ultramicroscope, 132 



