INDEX 



455 



Cloudiness of objective and ocular, 109 



removal of cloudiness, 93, 109 

 Coarse adjustment of microscope, 27, 97 

 Cobweb micrometer, 148 

 Collection of microscopic material, 334 

 Collodion, 353 



castor-xylene method with, 391 



coating glass rod, 116 



cementing, 353 



clarifying of, 391 



fastening sections to slide, 386 



handling sections with paper, 390 



hardening, 388 



method, 387-392 



method with paraffin, 391-392 



transferring sections from knife to 



slide, 390 



Collodionizing sections, 353 

 Color photography, 244-245 

 Color-correct photography, 234-240 

 Color images, 80 



law of, 253 



production of by polariscope, 267 



screens, 234-240 



spectral, 248 



Combinations in objectives, 20-21 

 Comparing two microscopic fields, 122 

 Comparison ocular (fig.), 123 



prism, 249 



spectrum, 253 

 Compensation ocular (fig.), 24, 292-294 



434 



Complementary spectra, 253 



Concave lenses, 281, 427 

 mirror, use of, 54 



Condensers, 57-76, 297, 434 

 Abbe, 59 



achromatic, 57, 59 

 apochromatic, 58 

 centering, 59-60 



homogeneous immersion, 64, 297 

 image of scale for micrometry, 155 

 in drawing for models, 419-420 

 lighting the field with, 63 

 mirror with, 63 

 non-achromatic, 58-59 

 numerical aperture of, 60 

 photo-micrography with, 228-231 



source of light with, 60-6 1 



standard size, 106 



substage, 57 

 Condensing lens for projection, size of, 



233, 420 



Congo glycerin, 354 

 Congo red, 354 

 Construction of images, 12 



real and virtual images, 13-14 

 Continuous spectrum, 248 

 Contour, double, 116 

 Converging lens, 281, 427 

 Convex lens, 281 

 Correction, chromatic or color, 288-294 



of the aberration of lenses, 284-294 



cover-glass, 285 



over and under correction, 285-288 

 Cotton, collodion, 353 



soluble, 353 



Counterstaining, 395-396 

 Cover-glass or covering glass, 313 



aberration, (fig.) 78, 285-286 



adjustment, directions, 78-79, 229 



adjustment for in photo-microg- 

 raphy, 229 



adjustment and tube length, 286- 

 288 



anchoring, 327 



cleaning, 316-318 



correction, 286-288 



effect on rays from object, 40-43, 

 286 



focusing with and without, 42-43 



for unadjustable objectives, 285- 

 287 



gauges or measures (fig.), 318-320 



measuring the thickness of, 43-45. 

 318-320 



sealing, 326-327 



thickness, 318-319 



tube-length and cover-thickness, 

 286-288 



variation in thickness, 319 



wiping, 317-318 



working distance with and fig., 40-43 

 Critical angle, 64, 275-276 

 Crystals for pedesis, 119 

 Currents, diffusion, avoidance, 117, 396 



