INDEX. 



235 



pby, 1S4 ; condenser for, 40, 191 ; 

 distinguished from micro-photogra- 

 phy, 183 ; experiments, 193 ; expos- 

 ure for, 193, 194, 199, 200, 203 ; fo- 

 cusing for, 195 ; focusing screen for, 

 195 ; lighting, 192, 193, 198, 203 ; ob- 

 jectives and oculars for, 14, 189, 195 ; 

 vertical camera with, 205 ; visual and 

 actinic foci in, 189 ; with long and 

 short bellows, 187 ; with and without 

 ocular, 189-199; record table for, 204. 



Physiological histology, 173. 



Plane mirror, use of, 36. 



Plates, exposure of, 193, 194, 199, 200, 

 203 ; gelatiuo-bromide, 184 ; isochro- 

 matic, or orthochromatic, 189, 191, 

 197. 



Pleochroism, 138 



Pleurosigma angulatum, 39 



Point, axial, 16 ; burning, 6. 



Polariscope, 127, 136. 



Polarized light, extraordinary and ordi- 

 diuary rav of, 136. 



Polarizer and analyzer, putting in posi- 

 tion, 136. 



Polarizing microscope, pedesis with, 89. 



Position of objects or parts of same ob- 

 ject, 82. 



Positive oculars, 11, 22. 



Power of microscope, 92 ; illuminating, 

 penetrating, resolving, 21 ; of object- 

 ive, 19, 215 ; of ocular, 26, 215. 



Preparation of Canada balsam, Farrant's 

 solution, glycerin, glycerin jelly, etc. 



I75-J79 



Preparation of clearing mixture, liquid 

 gelatin and shellac cement, 175-179. 



Preparations, cataloging, 171, 172 ; cabi 

 net for, 173-174 ; labeling, 171 ; per- 

 manent, of isolated cells, 155 ; stor- 

 ing, 171. 



Preparation of diagrams, 215 ; of ground 

 glass, 29 ; vials, 159. 



Price of American and foreign micro- 

 scope, 6r, 63. 



Principal focus, 3, 5 ; focal distance, 3, 

 30 ; optic axis, 2, 5. 



Prism of Abbe camera lucida, in ; Am- 

 ici, 126 ; comparison, 127, 128 ; dis- 

 persing, 126 ; Nicol, 136 ; and slit of 

 micro-spectroscope, niutual arrange- 

 ment, 125; of Wollaston's camera 

 lucida, 1 11. 



Prints and mechanical printing of photo 

 micrographs, 208. 



Projection objective, 14, 195 ; ocular, 25, 

 26, 189 ; designation of, 189 ; in pho- 

 to micrography, 199, 202. 



Putting on cover-glass, 146 ; an object 

 under microscope, 27 ; an objective 

 and ocular in position, 26, 27. 



Pyroxylin, 176. 



Q-R 



Quadrant for camera lucida, 113. 



Quinine, Herapath's method of determin- 

 ing minute quantities of, 181. 



Rack for drying negatives, 203. 



Ratio, ocular micrometer, 106. 



Reagents for fixing, 175 ; irrigation with, 

 150 ; for mounting, 175. 



Real image, 5, 10, 22, 29-31 ; magnifica- 

 tion, 92. 



Record table for photo-micrography, 204. 



Reflected light, 34. 



Refraction, 50 ; images, 49, 55 ; index of, 

 50 ; of medium in front of objective, 

 20. 



Refractive, doubly, 137 ; highly, 87 ; 

 si"gly, J 37- 



Relative position of objects, 82. 



Resinous media, mounting objects in, 

 order of procedure, by drying or 

 desiccation, 152 ; by a series of dis- 

 placements, 153. 



Resolution and numerical aperture, 21. 



Resolving power, 20. 



Retinal image, 6, 10. 



Revolver, 27. 



Revolving nose-piece, marking objec- 

 tives oil, 65. 



Rice, examination of, 90. 



Sagittal sections, 170. 



Salicylic acid, crystallization, 48. 



Salt solution, normal, 179. 



Scale of drawing, 118 ; of wave lengths, 



128. 

 j Scales ofbutterflies and moths, examin- 

 ' ation of, 90. 



Screen, color, [91 ; focusing s. for photo- 

 micrography, 194, 195 ; of ground 

 glass, 29 ; for microscope, 56. 

 ' Screw, society, 62 ; micrometer, 26, 104. 



Sealing cover glass, 148. 



Searching ocular, 25. 

 j Secondary axis, 3. 

 I Section, optical, 87. 



Sections, arrangement of tissue for, 168 ; 

 clearing, 167; cutting, 160, 166; 

 fastening to slide, 160, 166; frontal, 

 170; removing benzin, oil and 

 paraffin from, 166, 161 ; sagittal, 170 ; 

 serial, 16S-171 ; staining, 161, 167 ; 

 transferring, 160. 



Sediment in water determination of 

 character, 780. 



Selen'ite plate for polariscope, 138. 



Senii-apochromatic objective, 13. 



Serial sections, 168 ; arranging and label- 

 ing, 169, 171 ; determining thickness 



