INDEX 



295 



Micro-spectroscope, 134-150; adjusting, 

 139 ; experiments, 145 ; focusing, 

 144 ; focusing the slit, 139 ; lighting 

 for, 144 ; objectives to use with, 144 ; 

 reversal, apparent, of colors in, 134 ; 

 slit, mechanism of, 135, 139. 

 Micrum, 113. 

 Mikron, 113. 



Milk globules, to overcome pedesis 

 of, loo 



Minerals, absorption spectra of, 149. 



Minot's microtomes, 275-276. 



Minute objects, arrangement of 204. 



Mirror, 9-11 ; for Abbe illuminator, 48; 

 of camera lucida, arrangement for 

 drawing, 126 ; concave, use of, 37 ; 

 dark ground illumination, 50 ; light 

 with, central and oblique, 40, 41 ; 

 lighting with, 37 ; plane, use of, 37. 



Mixture, clearing, 200. 



Models, wax, 274. 



Moist, chamber, 171. 



Molecular movement, 99. 



Monazite sand, spectrum of, 149. 



Mounting cells, preparation of, 168 ; me- 

 dia and preparation of, 198 203 ; ob- j 

 jects for polariscope, 151 ; perma- j 

 nent, 167 ; temporary, 166. 



Mounting objects, dry in air, order of 

 procedure, 167-168; in glycerin, or- i 

 der of procedure, 170 ; in glycerin \ 

 jelly, order of procedure, 170; in 

 media miscible with water, 169 ; mi- 

 nute objects, 204 ; opaque objects, 

 239 ; permanent, 167 ; in resinous ! 

 media, by drying or desiccation, or- j 

 der of procedure, 172 ; in resinous 

 media, by successive displacements, 

 order of procedure, 172 ; temporary," 

 1 66. 



Movement, Brownian, or molecular, 99. 



Muscae volitantes, 100. 



Muscular fibers, isolation of, 175. 



N 



Natural balsam, 199. 



Needle-holder, 167. 



Negatives, labeling, 211, 214; oculars, 

 22 ; rack for drying, 240 ; record of, 

 214 ; storing, 211, 214. 



Net micrometer, 128. 



Neutral balsam, 199. 



Nicol prism, 150. 



Nitric acid, dissociator, 203. 



Nomenclature of objectives, 10. 



Non-achromatic condenser, 46 ; object- 

 ives, ri. 



Non-adjustable objectives, 12; thickness 

 of cover glass for, table, 14. 



Normal salt solution, 203. 



Nose-piece, 27, 38, 80; marking object- 

 ives on, 71. 



Numerical aperture, of condenser, 44 ; of 

 objectives, 16, 270 ; table of, 19. 



Object, determination of form, 93 ; hav- 

 ing plane or irregular outlines, rela- 

 tive position in a microscopical prep- 

 ration, 92 ; and image, size of, 10, 

 108 ; marking parts of, 65-66 ; mark- 

 ing position of, 248 ; micrometer, 105; 

 mounting, 166 ; putting under micro- 

 scope, 27 ; shading, 59 ; suitable for 

 photo-micrography, 227 ; transparent 

 with curved outlines, relative posi- 

 tion in microscopic preparations, 94. 



Objective, 9-13, 121 ; achromatic, n ; 

 adjustable, n, 12, 54; adjustable, 

 micrometry with, 118; adjustable, 

 photo-micrography with, 234 ; adjust- 

 ment for, 54 ; aerial image of, 30 ; 

 anastigmat, 208 ; aperture of, 15-22, 

 270 ; aplanatic, 1 1 ; apochromatic, 

 12, 224 ; back combination of, 10, n ; 

 carrier, 259 ; cleaning back lens of, 

 61 ; collar, graduated for adjustment, 

 56 ; cloudiness or dust, how to deter- 

 mine, 92; designation of. 10; dry, 

 10, 17-19, 121 ; equivalent focus of, 

 10, 25, 29, 272 ; field of, 28-29 J focus- 

 ing for micro-spectroscope, 144 ; front 

 combination of, 10, u ; function of, 

 2 9"3 T ' glass for, 11-13, 7 1 '> high, 

 focusing with, 38 ; homogeneous im- 

 mersion, 17-19, 121 ; homogeneous 

 immersion, cleaning, 59; homogene- 

 ous immersion, experiments, 58 ; il- 

 luminating, 13, 238 ; image, power 

 of, 18 ; immersion, ir, 121 ; index of 

 refraction of medium in front of, 17, 

 19 ; initial or independent magnifica- 

 tion of, 273 ; inverted, real image of, 

 30 ; for laboratory microscope, 64 ; 

 lettering, 10 ; light utilized with, 17 ; 

 low, focusing with. 38 ; magnifica- 

 tion of, 272 ; marking, by Krauss' 

 method, 71 ; for micrometallography, 

 13, 159; micro-planar, 212, 260; to 

 use with micro-polariscope, 151 ; mi- 

 croscopic, 9 ; to use with micro- 

 spectroscope, 144 ; for micro- spectro- 

 scope, focusing, 144 ; nomenclature 

 of, 10 ; non-achromatic, n ; non- 

 adjustable, 12; non-adjustable, thick- 

 ness of cover-glass for, table, 14 ; 

 with nose piece, 38 ; numbering, 10 ; 

 numerical aperture, 16-22, 270 ; oil 



