292 



INDEX 



Experiments, Abbe condenser, 48 ; with 

 adjustable and immersion objectives, 

 54 ; compound microscope, 26 ; ho- 

 mogeneous immersion objective, 58 ; 

 lighting and focusing, 37 ; in micro- 

 chemistry, 157 ; with micro spectro- 

 scope, 145 ; with micro-polariscope, 

 152 ; in mounting, 166 ; photo-micro- 

 graphy, 229 ; simple microscope, 6. 



Exposure, of photographic plates, 232, 

 235, 240; with color-screen 220. 



Extraordinary ray of polarized light, 150. 



Eye and microscope, 6, 9, 32. 



Eyes, care of, 61 ; muscae volitantes of, 

 100. 



Eye-lens of the ocular, 22. 



Eye-piece, 22 ; micrometer, 1 14. 



Eye-point, 7, 22, 123 ; of ocular, demon- 

 stration, 32. 



Eye-shade, adjusting, 62 ; double, 62. 



Farrants' solution in mounting objects, 

 171 ; preparation of, 201. 



Fibers, examination of, 101 ; textile, 158. 



Field, 28 ; with camera lucida, 107 ; illu- 

 mination of, 45, 51 ; with orthoscopic 

 ocular, 23 ; with periscopic ocular, 

 24 ; of view with microscope, 28, 29, 

 105, 123-125; size of, with different 

 objectives and oculars, 28, 29. 



Field-lens, of ocular, 22 ; action of, 32 ; 

 dust on, 92. 



Filar, micrometer ocular, 23, 26 ; ocular 

 micrometer, 117, 118. 



Filter, hot, 1S5. 



Filtering balsam, etc., 185, 199. 



Fine adjustment, Frontispiece ; testing, 



6 3- 

 Fir, balsam of, 199. 



Fixative, albumen, Mayer's, 198. 



Fixing, reagents for, 19S ; tissue, 176. 



Focal distance, or point, principal, 30 ; 

 length equivalent, 10. 



Focus, 6; actinic, 226; chemical, 12 ; 

 conjugate, 4 ; equivalent, of object- 

 ives and oculars, 10, 25, 272-273 ; op- 

 tical, 12 ; principal^, 5 ; virtual, 3 ; 

 visual, 226. 



Focusing, 6, 34 ; adjustments, testing, 63; 

 with compound microscope, 34 ; em- 

 bryos, 213 ; experiments, 38 ; glass, 

 209 ; with high objectives, 38 ; with 

 low objectives, 38 ; objective for mi- 

 cro-spectroscope, 144 ; for photo-mi- 

 crography, 206, 213, 230; scale for, 

 206 ; screen for photo-micrography, 

 209 ; with simple microscope, 6, 34 ; 

 slit of micro-spectroscope, 145. 



Food, detection of adulteration in, 158. 



Form of objects, determination of, 93. 



Formal, 201. 



Formaldehyde, dissociator, 201 ; for isola- 

 tion, 173. 



Formula, for aperture, 16, 17 ; for catalog- 

 ing* J 95 I Ior refraction, 52-54. 



Fraunhofer lines, 137. 



Free, hand sections, 274 ; working dist- 

 ance, 40. 



Front combination or lens of objective, 

 9-1 1. 



Frontal sections, 192. 



Function of objective, 29-31 ; of ocular, 



Gauge, cover-glass, 164-165. 



Gelatin, liquid, preparation of, 203. 



Geometrical construction of images, 6. 



Glass, cleaning mixture for, 165 ; focus- 

 ing, 209 ; ground, 29, 209 ; rod appear- 

 ance under microscope, 96, 97 ; slides 

 or slips, 161, 162. 



Glasses, opera, 262. 



Glue, liquid, preparation of, 203. 



Glycerin, bottle for, 183 ; mounting ob- 

 jects in, order of procedure, 170, 201 ; 

 removal, 61. 



Glycerin jelly, mounting objects in, or- 

 der of procedure, 170-171 ; prepara- 

 tion of, 201. 



Grating, diffraction, 137. 



Ground glass, focusing screen, 209 ; pre- 

 paration of, 29. 



Gun cotton, 200. 



H 



Half-tones from photo-micrographs, 232, 



274. 

 Hardening collodion, 178 ; tissue, 176, 



183. 

 Hematein, 203. 

 Hematoxylin, 202 ; stained preparations, 



photographing, 218. 

 Hemoglobin spectrum, 147. 

 High school microscope, 64, 71-89. 

 Histology, physiological, 196. 

 History of photo- micrography, 220. 

 Holder, lens, 7, 217, 228 ; needle, 167 ; 



slide, 188. 

 Homogenous immersion objective, 16- 



19 ; cleaning, 59 ; experiments, 58 ; 



numerical aperture, 16-21. 

 Homogenous liquid, 11 ; tester for, 58, 



271 ; vessel for, 199. 

 Horizontal camera, 230, 236-237. 

 Huygenian ocular, 22, 24, 32. 





