INDEX. 



ABBE CAMERA LUCIDA, .T^^iii ._.... 164 



Abbe Condenser, '154, 182 



Aberration, Chromatic, 24, 25, 94, 142 



Aberration, How Corrected, 25, 26 



Aberration, Spherical, 22, 23, 96, 140 



Accessories, 186 



Achromatic Lens, 26 



Adjustments, 47 



Adjustable Objectives, 98 



Adjustment, Closed, 98 



Adjustment, Open, 99 



American Type Microscope, 176 



Amplification, no 



Angular Aperture, 81 



Apertometer, 91 



Aperture, 83, 87 



Aperture of Condenser, 160 



Aplanatic Triplet, 30, 38 



Apochromatic Objectives, 112 



Arm of Microscope, 45 



Attachable Mechanical Stage, 57, 181 



Axis of Lens, 19 



Axis, Optical, 49 



BASE OF MICROSCOPE, 45, 67, 177 



Binocular Microscope, 61 



Blood Counting, 58 



Body of Microscope, 45, 61 



Bruecke Lens, 31 



Burning Point, 21 



CAMERA LUCIDA, 163 



Camera Lucida, Abbe, 164 



Camera Lucida, Wollaston's, 164 



Cap Diaphragm, 70 



Cedar: Oil, 77 



Centering Illumination, 158 



