94 



INDEX. 



52 ; of microscope, compound, 37 ; 

 of microscope, simple, 36 ; relation 

 to eyes, 40 ; varying with compound 

 microscope, 39. 



Magnifier, 2. 



Magnifying power of microscope, 36. 

 trv^u-z i. f e Matezek sand, spectrum of, 62. 



Marking objects, 11, note. 



Material and apparatus, 1, 29, 36, 54, 66. 



Measurer, cover-glass, 69. 



Measuring the spread of dividers, 37. 



Mechanical parts of compound micro- 

 scope, 3 ; of laboratory microscope, 

 28 ; of microscope, care of, 25. 



Mechanical stage, 28. 



Medium, mounting, 5, 7. 



Micro-chemistry, 84. 



Micrometer, filling lines of, 37 ; object 

 or objective, 37 ; ocular or eye-piece, 

 10, 42, 43 ; ocular, micrometry with, 

 44 ; ocular, valuation of, 43 ; ocular, 

 varying valuation of, 44 ; ocular, 

 ways of using, 45 ; stage, 37. 



Micrometry, definition, 40 ; with adjust- 

 able objectives, 46 : comparison of 

 methods, 46-47 ; with compound mi- 

 croscope, 41 ; by dividing tbe size of 

 image by magnification of micro- 

 scope, 42 ; limit of accuracy in, 46 ; 

 with ocular micrometer, 44 ; with 

 simple microscope, 41 ; remarks on, 

 46 ; by stage micrometer and camera 

 lucida, 42 ; by stage micrometer on 

 which is mounted the object, 42 ; 

 unit of measure in, 41. 



Micro-millimeter, 41. 



Micron, 41 ; for measuring wave-length 

 of light, 58. 



Micro-polariscope, 35, 62 ; for laboratory 

 microscope, 28 ; lighting for, 63 ; ob- 

 jectives to use with, 63 ; purpose of, 



64. 



Microscope, definition, 1 ; adjustment, 

 12 ; amplification of, 36 ; care of, 25 ; 

 field of, 11; focusing, 15; magnifi- 

 cation, 36 ; polarizing, 34. 



Microscope compound, definition, 1 ; 

 drawing with, 47 ; experiments with, 

 10; focusing with, 15; for labora- 

 tory, 27 ; magnification or magnify- 

 ing power, 36, 37 ; magnification and 

 size of drawing with Abbe camera 

 lucida, 52 ; mechanical parts of, 3 ; 

 micrometry with, 41 ; optic axis of, 

 16; optical parts of, 3; polarizing, 

 pedesis with, 34 ; stand of, 1 ; vary- 

 ing magnification, 39. 



Microscope, simple, definition, 1 ; ex- 

 periments with, 2 ; focusing with, 

 15 ; magnification of, 36 ; microm- 

 etry with, 41. 



Microscopic objective, 3 ; ocular, S ; 

 slides or slips, 66. 



Microscopical preparations, cabinet fo", 

 80; cataloging, 79; labeling, 77; 

 tube-length, 5. 



Micro-spectroscope, 54 ; adjusting, 56 ; 

 experiments, 60 ; for laboratory mi- 

 croscope, 28 ; lighting for, 58 ; ob- 

 jectives to use with, 59 ; slit-meehan- 

 ism of, 54. 



Micrum, 41. 



Mikrou, 41. 



Minerals, colored, absorption spectra of, 

 62. 



Mirror, 1 ; for Abbe illuminator, 20 ; 

 concave, use of, 17 ; light with, cen- 

 tral and oblique, iq; lighting with, 

 17 ; plane, use of, 17 ; position of con- 

 cave, 17. 



Molecular movement, 34. 



Mono-refriugent, 64. 



Mounting cells, preparation of, 71 ; me- 

 dium, 5, media, preparation of, 82. 



Mounting objects, dry in air, order of 

 procedure, 73 ; examples in air, gly- 

 cerin jelly and balsam, 81 ; in Far- 

 rant's solution, order of procedure, 

 74 ; in glycerin, order of procedure, 

 73 ; in glycerin jelly, order of pro- 

 cedure, 74 ; in media miscible with 

 water, 73 ; microscopical objects, 70 ; 

 in resinous media, by drying or des- 

 iccation, order of procedure, 75, 76 ; 

 in resinous media by successive dis- 

 placements, order of procedure, 75, 

 76. 



Movement, Brownian, or, molecular, 34. 



Myopia, effect on magnification, 40. 



N 



Negative oculars, 8, 9. 

 Net-micrometer, 50. 

 Nicol prism, 62. 

 Nomenclature of objectives, 3. 

 Non-achromatic objectives, 4. 

 Non-adjustable objectives, 5 ; thickness 



of cover-glass for, table, 6. 

 Nose-piece, 1 1. 

 Numerical aperture of objectives, 7. 



o 



Object micrometer, 37 ; putting under 

 microscope, 11 ; having plane or ir- 

 regular outlines, relative position in 

 a microscopical preparation, 30; 

 transparent with curved outlines, 

 relative position in microscopic pre- 

 parations, 30; shading, 25. 



Objective, 1 ; achromatic, 3, 4 ; adjusta- 

 ble, 5 ; adjustable, experiments, 22 ; 

 adjustment for, 22 ; aerial image of, 

 13 ; aperture of, 6, 7 ; aplanatic, 4 ; 



