INDEX 



143 



Eyepiece, projecting, 89 



„ with oross-lines, 73 



„ „ indioatoT, 73 



Eyepoint, 13 / 

 Eyeshade, 73 / 



Field, flatnes^of, IS, 81 



„ ofviewi 14,82 

 Films, blood, |S8 

 Finder divisions, 61,72 

 Fine adjustro^nt, 19, 93 

 FlageUata, 128 

 Flat mirror, 23 

 Flatness of aeld, 18, 81 

 Flattening objects, 54, S7 

 Focal length, 12 

 Focussing adjustment, 18, 93 



,, best method of, 19 



„ dark -ground illuminator, 3S 



„ glass, 75 



,, Bubstage condenser, 28 

 Foraminifera, 128 

 Forceps, stage, 67 

 Freehand drawing, 67 



Gas lamp, 48 

 Glass cover, 63 



,, focussing, 75 



„ plate ruled in squares, 6 1 



,, slip with ledge, 54 



,, sUps, 62 

 Grinding machine, 64 



Hsemacytometer, 68 



Hair of nettle, 134 



Heliozoa, 127 



High-power illuminator, dark-ground, 



34 

 Histology, best object glasses for, 90 

 Holding specimens, 50 

 Holopedium, 133 



Illumination, 21, 23, 28 



intensity of, 37, 43, 44 



„ opaque, 38, 39 



,, with condenser, 26, 38 



,, „ dark -ground, 34 



,, ,, mirror, 23 



Illuminator, parabolic, 40 



„ vertical, 40 



Image formed by eyepiece, 9, 13 



„ „ object glass, 9, 11 

 ,, incorrect, 31 

 Immersion condenser, 28 



„ fluids, 17 



,, object glasses, 17, 34 

 Inclined position of microscope, 60 

 Indicator eyepiece, 73 

 Initial magnifying power, 68, 77 

 Instrument, dissecting, 73 

 Intensity of light, 44 

 Iris diaphragm, 23, 26 



Joint of microscope stand, 94 



Lamp, electric, 45, 46 

 „<< gas, 48 



Lamp, parafSn, 44 



„ spirit, 48 

 Ledge, sliding, 61 

 Length of body, 79, 93 

 liight, centring, 15 



„ cone of illuminating, 26 



,, convergent, 23 



,, correct direction, 22 



,, divergent, 23 



,, intensity, 44 



,, moderator, 32 



,, scattered, 24 

 Limb of microscope stand, 94 

 Linear magnifying power, 13 

 Live box, 67 

 Living specimens, 56 

 Lucida camera, 69 



Magnifj^ng power, 13, 77, 88 

 Measuring cover glass, 63 



,, specimens, 67 



Mechanical stage, 52 

 Metallurgical microscopes, 115 



„ specimens, 63 



Metallurgy, object glasses for, 91 

 Micrometer, 67 



Microscope as a recreation, 125 

 ,, binocular, 107 

 ,, massive model, 104 

 ,, metallurgical, 115 

 ,, petrological, 120 



portable, 100 

 ,, Standard London, 95 

 stands, 9, 92 

 Mirror, 23, 28, 95 

 Moderator, light, 32 

 Monad, 129 

 Mounting cells, 56, 58 

 ,, specimens, 58 



Net collecting, 66 



Nosepiece, 20 



Numerical aperture, 15, 17, 70 



Object glass, 11, 12, 17, 76 

 ,, centring, 21 

 ,, „ changer, 21 



,, ,, characteristics of differ- 

 ent, 82 

 „ „ examination of back lens, 



29 

 „ „ selection of, 87 

 Object, scattering of light by, 24 

 Objects, flattening, 54, 57 

 Oil-immersion, 78 



Optical quality of substage condenser, 

 26 



Parabolic illuminator, 40 

 Patch-stop adjustment, 33 

 Pathology, best object glasses for, 87 

 Penetration, 18 

 Periodic structure, 25, 31 

 Petrological microscope, 120 

 Photomicrography, camera for, 74 

 „ eyepiece for, 89 



Pillar of microscope stand, 62 

 Pinhole aperture, 12 



