INDEX 



Airy disk 6 



Annular-diaphragm (phase microscope) 77 



Anoptral device (Reichert) 79 



Area edge (incoherent illumination) 36 



Astigmatism 22 



Axial settings (role of the observers's eye) 165 



Axial setting accuracy 164 



Axial im.age duplication method (interference microscopy) 109 



Basic system for microsp?ctrophotometry with photo-cell 247 



Bausch and Lomb interference microscope 153 



Bausch and Lomb ultra-violet microscope 239 



Bendford and Seidenberg device (phase contrast) 136 



Birefringence (measurement) 210 



Black line (coherent a partially coherent illumination) 42 



Black line in coherent illumination 355 



Blaisse's interference microscope 121 



Bouwers and Blaisse solid reflecting objective 235 



Burch microscope objectives 230-238 



Calibrating the hot stage 270 



Caspersson microspectrophotometric equipment 250 



Cassegrain type reflecting objective 229 



Chapman and Alldridge device 140 



Characterizing and identifying fusible compounds 284 



Chemical Microscopy 267 



Chromatic eff"ects on the image contrast 58 



Chromatism produced by diflfraction 15 



Coated surface 60 



Coherent light 26 



Colour phase-contrast 88 



Coma 21 



Compensated interference eyepiece 1 1 6 



Complete image duplication method 105 



Condenser aperture (eff"ect on the resolution of two pin-points) 55 



Contact angle measurement 222 



Contact method (Kofler) 274 



Contrast 33 



Contrast factor of an optical instrument 39 



Contrast image produced by the object 73 



Cooke, troughton and Simms photometer eyepiece 262 



Critical illumination 28 



289 



