INDEX. 



Vll 



Power Depends on Focal 

 Length 31 



Preparations, Bacteriological.. 109 



Preparations, Faded 109 



Preparations, Family Red. . . . 109 



Preparations, Insect 109 



Preparations, Opaque Yellow. 109 

 Preparations, Wanting Con- 

 trast 109 



Preparations for Work 17 



Preserving Sensitized Albumen 



Paper 117 



Presses and Shelves 20 



Principles For Color-Correct 



Work 108 



Printing, Principles of 115 



Printing Frame, To Use 117 



Printing in Platinum 130 



Printing on Albumen Paper. .. 115 

 Printing on Albumen Paper.. 117 

 Printing on Bromide Paper. . . . 123 

 Printing on Gelatine Chloride. 121 

 Printing Processes, Solutions 



for 64 



Printing Processes in General 111 



Prints, To Mount 120 



Prisms for Monochromatic 



Light 42 



Procedure With Easy Objects. . 79 



Progressive Examples 79 



Projection, Ocular, To Focus. . 85 



Projection Oculars 37 



Projection Oculars 164 



Projection Oculars by Abbe 



andZeiss 75 



Pyro, for Bromide Paper 128 



Pyro, Solutions 61 



Pyro-ammonia Developer 91 



Pyro-carbonate Developer. ... 91 

 Pyro Developer for Wet Collo- 

 dion 147 



Quality of Gelatine Plates 65 



Quinol Developer 99 



Ouinol Developer for Bromide 



Paper 128 



Quinol Developer For Slides.. 152 



Ramsden Eye-Piece 53 



Rapid Emulsion, Late Advances 



in 67 



Rapid Exposure, How to Make 54 



Rays, Visual and Actinic 27 



Reade, Rev. J. B 12 



Reds, Plates Sensitive To 107 



Reducing Solution, Farmer's.. 63 



Reduction of Density 102 



Reduction with Iron Chloride 63 

 Reflections in Apparatus 77 



" Register" 53 



Removing Hypo from Prints. . . 119 



" Resolution " Denned 164 



Resolution Increases with Ap- 

 erture 28 



Resolving Power in Relation 



Aperture 163 



Rigidity, Essential to Micro- 

 scope 22 



Ruby Fabric 55 



Ruby Glass for Operating 



Room 55 



Rose Tap 57 



Roux, Dr., His Magnesia 



"Bulbous" 44 



S. Gemma 173 



" Safe" Light For Operating 



Room , 56 



Safety of Light, to Test 56 



Safety Spring for Fine Adjust- 

 ment 26 



Sciopticon Lantern, Scovill's.. 157 



Scovill's Optical Lantern 157 



Screen, Aurantia, To Make.. 108 



Screen, Signal-Green 108 



Screen For Optical Lantern... 158 

 Screens, Use of With Colors. . 106 



Screens, Worked Glass 108 



Screens for Orthochromatic, 

 Must Cut Off Violet and 



Blue 109 



Screens for Orthochromatic 



Work 108* 



"Screens" in Color Photog- 

 raphy 106 



Sections, Thinness of 169 



Selection of Plates fi5 



Selenites for Polariser 35 



Sensitizing Albumen Paper. . . 116 

 Sensitising Albumen Paper, 



Bath for 64 



Sensitometer 59 



Shadbolt, his Work 15 



Shaw Bull's-Eye 38 



Shutter For Exposing 53 



Shutters For Lantern Room. . . 159 



Side Reflector 176 



Signal Green Screen 108 



Simple Photo- Micro Apparatus 47 



Sink For Operating Room 56 



Sinks, India Rubber 57 



Sizes of plates 52 



Slides By Contact, To Print. . . 145 



Slides By Reduction 146 



Slides By Reduction. Apparatus 



for 146 



Slides for Optical Lantern 143 



