298 



INDEX 



h3'dration of, 190 ; extending with 

 water, 1S6 ; fastening to slide, 179, 

 187 ; frontal, 192 ; mounting, 183, 

 190 ; removing benzine, oil and para- 

 ffin from, 179, 1S8 ; ribbon, 186 ; 

 sagittal, 192 ; serial, 191-193 ; stain- 

 ing, 180, 189 ; transferring, 179 ; 

 thickness for micro-projection, 263. 



Selenite plate for polariscope, 154. 



Semi-apochromatic objective, 13. 



Serial sections, 191-193 ; arranging and 

 labeling, 192, 193 ; stage for, 67, 69 ; 

 thickness of cover-glass for, 193. 



Shell vials, 174. 



Shellac cement, preparation of, 203 ; re- 

 moval from lenses, 61. 



Significance of aperture, 20. 



Simple microscope, see under microscope. 



Sines, table of, 3d page of cover. 



Slides, 161 ; box for 198; cleaning, 161 ; 

 holder for, 188-189 ! lantern, 241 ; for 

 micro-chemistry, 161 ; tray for, 1S7. 



Sliding microtome, 278. 



Slips, 161. 



Slit mechanism of micro-spectroscope, 



135, 139- 



Society screw, 64. 



Sodium, lines and spectrum, 136-137. 



Solar spectrum or s. of sunlight, 136-137. 



Soluble cotton, 200. 



Solution, alum, 198 ; Farrants', 201. 



Specimen cooler, 257. 



Spectral, colors, 138 ; ocular, 134, 139. 



Spectroscope, direct vision, 134, 145. 



Spectroscopic, examination of color- 

 screens, 220 ; ocular, 134. 



Spectrum, 136-150; absorption, 137; 

 amount of material necessary and its 

 proper manipulation, 145 ; analysis, 

 150 ; Angstrom and Stokes' law of, 

 13S ; banded, not given by all colored 

 objects, 148 ; of blood, 146 ; of carbon 

 monoxide hemaglobin, 147 ; of car- 

 mine solution, 148 ; of minerals, 149 ; 

 of colorless bodies, 14S ; comparison, 

 142 ; complementary, 139 ; continu- 

 ous, 137 ; double, 142 ; incandescence; 

 137 ; line, 137 ; met-hemaglobin, 147, 

 monazitesand, 149 ; oxy-hemoglobin, 

 138, 147; permanganate of potash, 136, 

 146 ; single-banded of hemaglobin, 

 138, 147 ; sodium, 136, 137 ; solar, 

 !36, 137 ; two-banded of oxy-hema- 

 globin, 147. 



Spherical aberration, 4, 5 ; test for, 268. 



Stage, Frontispiece, 65 ; mechanical, 65, 

 67-70, 259 ; micrometer, 105 ; for mi- 

 cro-projection, 258 ; for photograph- 

 ing, 211. 



Stain, alcoholic, 180, 189 ; aqueous, 180, 

 189 ; for micro-projection, 263. 



Staining, cells, 174 ; dish, 190 ; sections, 

 180, 189. 



Stand, of microscope, 65 ; photo-micro- 

 graphic, 231 ; special for embryos, 

 212 ; special for large transparent ob- 

 jects, 215, 216. 



Standard, distance (250 mm.) at which 

 the virtual image is measured, 109 ; 

 screw, 64 ; size for condenser, 47 ; 

 size for oculars, 26. 



Stokes and x\ngstrom's law of absorption 

 spectra, 138. 



Storing negatives, 211 ; preparations, 196. 



Substage, 86, Frontispiece. 



Substances for crystallography, 156. 



Sulphonal with polarizer, 154. 



Sulphuric ether, 201. 



Support for knife of microtome, 276-277. 



Swaying of image 4S. 



Synthol, 19S. 



System, back, front, intermediate of 

 lenses, 10, 11 ; crystal, 156 ; metric, 

 cover 1st p., 133. 



Table, for immersion fluid, 272 ; of mag- 

 nification and valuation of ocular mi- 

 crometer, in ; magnification with 

 projection microscope, 262 ; of tube- 

 length and thickness of cover-glasses, 

 14 ; natural sines, third page of cover; 

 of numerical aperture, 19 ; record, 

 for photo-micrography, 219 ; size of 

 fields, 29 ; testing homogeneous liq- 

 uids. 272 ; of valuations of ocular 

 micrometer, 111 ; weights and meas- 

 ures, 2d page of cover. 



Temporary mounting, 166. 



Terminology of objectives, 10. 



Test of chromatic and spherical aberra- 

 tion, 268-270. 



Tester, cover-glass, 164-165 ; for homo- 

 geneous liquids, 58, 271. 



Testing a camera, 223 ; a microscope and 

 its parts, 63. 



Test-plate, Abbe's, method of using, 268. 



Textile fibers, examination of, 101, 158. 



Thickness, of cover-glass for non-adjust- 

 able objectives, table, 14 ; of serial 

 sections, 193. 



Tissues, arranging for sections, 191 ; fix- 

 ing or hardening, 176, 183 ; washing 

 apparatus for, 280. 



Tolles-Mayall mechanical stage, 67. 



Transections, 192. 



Transferring sections, 179. 



Transmitted light, 36. 



