INDEX 



143 



Eyepiece, projecting, 89 



}, with cross-lines, 73 



» ,, indicator, 73 



Eyepoint, 13 

 Eyeshade, 73 



Field, flatness of, 18, 81 



„ ofview, 14, 82 

 Films, blood, 58 

 Finder divisions, 51,72 

 Fine adjustment, 19, 93 

 Flagellata, 128 

 Flat mirror, 23 

 Flatness of field, 18, 81 

 Flattening objects, 54, 57 

 Focal length, 12 

 Focussing adjustment, 18, 93 



,, best method of, 19 



„ dark -ground illuminator, 35 



„ glass, 75 



,, substage condenser, 28 

 Foraminifera, 128 

 Forceps, stage, 57 

 Freehand drawing, 67 



Gas lamp, 48 

 Glass cover, 53 



„ focussing, 75 



„ plate ruled in squares, 6 1 



,, slip with ledge, 54 



,, shps, 62 

 Grinding machine, 64 



Haemacytometer, 58 



Hair of nettle, 134 



HeHozoa, 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, 50 

 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, paraffin, 44 



,, spirit, 48 

 Ledge, sliding, 51 

 Length of body, 79, 93 

 Light, 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, 57 

 Living specimens, 55 

 Lucida camera, 69 



Magnifying power, 13, 77, 88 



Measuring cover glass, 53 

 ,, 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, 55, 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 quahty 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 



