INDEX 153 



PACK 



Mercer, Dr. A. Clifford 2, 76 



Metallic Surfaces, Photo-micrographing 77 



Methods of Evenly Illuminating the Field . 64 



Metol 34 



Micro-photographs 2 



Microscope and Optical Apparatus, The 8 



Microscopes, Bausch & Lomb's 10 



Microscopes, Leitz's 10 



Microscopes, Spencer Lens Company's u, 14, 50 



Microscopes, The "Continental" form 10 



Microscopes, Zeiss' 10 



Negative Drying Racks 31 



Negative Making 49 



Non-halation Plates . . . 37 



Note-book 119 



Numbering Negatives .'...... 121 



Oblique Illumination . . 47 



Ocular or no Ocular ? 140 



Oil Immersion Objectives 70 



Old Developer, Use of * 34 



Opaque Objects by Reflected Light . 47> 77 



Orthochromatic Plates 35 



Oxy-hydrogen Light 44 



Paper Backing for Plates 38 



Paraboloid for Dark-field Illumination 16 



Persulphate of Ammonium Reducer 130 



Photo-macrography 3 , 49, 86, 87 



Photo -micrography, Definition of 2 



Photo-micrography in Metallography 77 



Photo-micrographs as Educational Aids 6, 99 



Photo-micrographing Bacteria 82 



Photo-micrographing without an Ocular 51 



Plate-holders 24 



Polarizing Apparatus . 16, 80 



Polarized Light 47, 79 



Potassium Bromide as Restrainer 133 



