INDEX 



459 



Illumination, dark-ground, 67-76, 120 



daylight, 45- 53 



entire field, 48, 63, 109-110 



micro-polariscope, 2(17 



micro-spectroscope, 257 



oblique with air and oil, 11 2-1 13 



opaque objects, 46, 434~435 



photography, 209 



photo-micrography, 222 



Wollaston's camera lucida, 163, 

 168 

 Illuminator or condenser, 57 

 Image, absorption, 235 



aerial, 31, 33 



color, 80 



erect, 34, 174-176 



formed by lenses, 281-284 



geometrical construction of, 12-14 



inverted real of objective, 34 



magnification of real and virtual, 

 133, 140, 176 



real fig. of, 13-14 



refraction, 80 



retinal, 7, 34 



size and position, 133-139, 176 



swaying, 66 



tracing, 173, 178-181 



virtual, 8, 14, 15, 34, 1 39-141 

 Imbedding, 377-378, 387-392 



double in collodion and paraffin, 



391-392 

 Immersion, 21, 64, 437 



condenser or illuminator, 64, 297 



fluid or liquid, 21, 299-300, 352, 

 437-438 



objective, 21, 47, 80, 437~438 

 Incandescence or line spectra, 250 

 Incident light, 45 

 Index of refraction, 272, 295 



absolute and relative, 273-274 



table of substances, 277 

 Indicator ocular, 102, 195, 433 

 Infiltration, 376, 387 



collodion, 387-388 



dish and oven, 377 



double with collodion and paraffin, 

 391-392 



paraffin, 376-384 



Infusions ami infusoria, 3 J5 



infusoria for dark-ground illumi- 

 nation, 70 

 Initial or independent magnification, 19, 



305 



Ink tor lain Is, el , ■50-340 

 Interpretation of appearances, 107 



dark-ground illumination to aid, 

 120 



summary for, 1 25 

 Inversion of the image, 124 

 Inversion in drawing, avoidance of, 172, 



Invisible and visible radiation. 24' 

 Iodin in alcohol, 361 



for removing men uric chlorid, 361- 

 362 



stain for glycogen, 359, 398 . 

 Iris diaphragm, 47 

 Isochromatic plates, 235 

 Isolation, 330 



formaldehyde, 332 



nitric acid, 333 

 Isotropic objects, 267 



Japanese filter (lens) paper, 93 



Jar for slides, 360, 363, 3S5 



Jelly, glycerin, 357 



Jena glass, 437 



Jurisprudence, micrometry in, 157, 159 



K 



Kerosene lamp, 61 

 Knife, sharpening of, 372 

 support, 3S0 



Labels and catalogues, 337 

 Labeling microscopic preparation-. 



photographic negatives, 214 



serial se< tions, 410 



Laboratory compound mi< roscope table, 



55, 95 



de>k, 96 



lockers, $45 

 Lagrange dis< or drcli 



