INDEX. 



Alkaloitls, Photograpliing Crystals of, 



30, 31 



Alum Bath 16, 17 



Apparatus for Preparing Objects 23 



Aperture of Lenses 3 



Arrangement of Microscope 12 



Arsenic Crystals 30, 31 



Artificial Illumination 9 



Balsam, Mounting in 25 



Bleaching Solution 25 



Cameras 5 



Choice of Lenses 3 



Condenser, Achromatic 5 



Copying Camera 6 



Copying Camera, Home-made 6 



Crystallizations, Preparing 30 



DallingerLamp 9 



Davis' Aperture Shutter 3 



Davis' Method of Focusing 7 



Defects in Negatives 17 



Development 14, 15 



Disadvantages of Solar Illumination. ... 8 



Double Slides 7 



Drying Negatives 17 



Duplex Lamps 9 



Electric Light Illumination 14 



Entomological Slides, Preparing 24 



Expansion of Apparatus from Lamp 12 



Exposing the Plate 9 



Eye-piece, Use of 4 



Ferricyanide Reducer ,. 20 



Ferrous Oxalate Developer 14 



Fixing Bath 16 



Foci, Visual and Actinic 4. 



Focusing with Single Slide 7 



French Lenses 3 



Gas-light Illumination 9 



Green Fog. I7 



Hard Substances, Preparing Sections of 29 



High Powers, Exposure under 10 



Home-made Copying Camera-! 6 



Hypo Bath for Prints 22 



Illuminating Apparatus 8 



Immersion Lenses 4 



Intensification jg 



PAGE 



Lenses 3 



Magnesium Lamp Illumination 13 



Miignesium Light 9 



Microscope, Arrangement of. 12 



Microscopical Apparatus 2 



Mounting Objects 24 



Oil Illumination 9 



Opaque Mounting 24 



Over-exposure 17 



Paraboloid 5 



Photographic Accessories, 7 



Photographic Apparatus 5 



Plates Suit ible for Photo-micrography. . 11 



Plain Glass for Focusing 7 



Preparing Objects for Photography. ... 22 



Printing 19 



Pyro Developer 14, 15 



Eeady-sensitized Paper 19 



Reducing Density Locally 20 



Ilefiecfions in Tube of Microscope 3 



Reflections from Apparatus 17 



Retouching Negatives 19 



Ruby Light 1.5 



Screens to Prevent Heating of Appa- 

 ratus 13 



Shrinking of the Gelatine 19 



Si o. Lens 5 



Stray Light on Plate 17 



Thin Negatives ig 



Time of Exposure 10 



Too Powerful Illumination 17 



Too Great Density 19 



Toning Bath 22 



Type Series of Objects 26 



Under-development 18 



Under exposure ig 



Unequal Illumination 17 



Use of Mechanical Stage 3 



Vegetable Tissues, Bleaching 27 



Vegetable Tissues, Preparing 27 



Visual and Actinic Foci 4 



