INDEX. 



PAGE 



Abbe on N. A 163 



Abercrombie and Wilson, Drs., 



their Work 13 



Abnormal Development 97 



Actinism 42 



Adapter with Boyonet Joint. . . 37 

 Advances of Late, Factors in. . 67 

 Advantages of Optical Lan- 

 tern 155 



Advantages of Photo-micro- 

 graphy 15 



Aerial Image, Focusing the. ... 53 

 Albumen Paper, Chemicals for 



Printing on 59 



Albumen Paper, Manufacture 



of 115 



Albumen Paper, Principles of 



Use of 115 



Albumen Paper, Qualities of. . 115 

 Albumen Paper, Ready Sensi- 

 tized 116 



Albumen Paper, "Salting".. 116 

 Albumen Paper, Sensitising 



Bath for 64 



Albumen Paper, To Sensitize 116 

 Albumen Prints, Enamelling. . 119 



Albumen Prints, To Fix J.19 



Albumen Prints, To Wash ... 119 

 Alkaline Pyro For Gelatine 



Bromide Slides 153 



Alkaline Solutions for Devel- 

 opment 62 



Alkaline Toning Solution.... 118 



Alum Acid For Clearing 101 



Alum Cell, or Trough 54 



Alum Solution 63 



Ammonio-nitrate for Albumen 



Paper 64 



Ammonio-sulphate of copper. . 42 



"Amplifier," Not Tried 37 



Angular Aperture and Reso- 

 lution 28 



Apartments for Work ... 17 



Apartment for Work to be Kept 



Dark 78 



Aperture and Penetration 30 



Aperture and Resolution 163 



Aperture, etc., Table, (Royal 

 Microscopical Society). .182, J83 



Aperture of Lenses 162 



Aplanatic Magnifier, Zeiss. ... 53 



Apochromatic Lenses 162 



Apochromatic Objectives, Cor- 

 rection 28 



Apparatus for Enlarging 135 



Apparatus Used, Vertical 48 



Appearance of Plate in Devel- 

 opment 95 



Arachnoidiscus Ehrenbergii, to 



Photo 81 



Archer 12 



"Area of Confusion" 28 



Aristotype Paper, Operations. . 122 

 Author's Complete Apparatus. 50 

 Author's Make-Shift Illumin- 

 ator 71 



Aurantia for Colored Screens. 108 



Azaline Plates For Red 107 



Bacteria, Crookshank on Pho- 

 tography of 13 



Bacteria Preparations, To 



Treat 170 



Bags For Gases 161 



Baker, Mr. C., his Stand 24 



Baker's "Nelson" Lamp 46 



Basement cellar for Work 17 



Beale, Dr. Lionel 15 



Beck's Microscopes 24 



Berkeley, H. B., his Pyro- 



Formula 61 



Black Grounds 174 



Black Grounds, Practice 174 



Blistering of Gelatine Plates. . 103 

 Blow-Fly's "Tongue," To Pho- 

 tograph 84 



Blow-Through Jet For Lantern 159 



Blow-through Lime-jet 43 



Books, etc., Consulted 178 



Bothamley, C. H., Aurantia.. 108 

 Bousfield, Dr. E. C., his Book 14 



Box For Drying Plates 107 



Bromide in Developer, Effect 



of 93 



Bromide Paper 123 



Bromide Paper, Chemicals for 



Printing on 60 



Bromide Paper, Development 



of 125 



Bromide Paper, Different 



Strengths of Developer 126 



Bromide Paper, Exposure Gen- 

 erallyof 125 



