INDEX 151 



PAGE 



Diatoms, Photographing 67 



Diffused Daylight as Radiant 42 



Donne, Dr. Early Photo-micrographs by 4 



Drying Negatives 61 



Drying Squeegee Prints 107 



Earliest published Photo-micrographs 4 



Eikonogen 32 



Eiko- Hydro Developing Powders 33 



Electric Arc as the Radiant ^ 



Electric Incandescent Light for Dark-room 27 



Enlarging, Reducing, and Copying Camera . . . 23, 88, 113 



Exposure, Length of 58, 64 



Farmer's Reducer. Formula 102 



Ferrotype Plates for Squeegeeing Prints 104 



Ferrotype, Care of 108 



Fiber Water Pail 31 



Fine Adjustment of Focus 25, 66 



Finishing Lantern Slides 115 



Fixing after Development 60, 134 



Fixing-bath Formula 30 



"Flare Spot" 53 



Focusing-glass : . . . . 13, 57 



Focusing- screens , 55 



Folding Drying-ruck 31 



Forbes' Lantern Plates 112 



Forbes' Orthochromatic Plates 36, 64, 72 



Form of Note-book 120 



Forms for Cutting out Masks 103 



Formula for Backing Plates 37 



Frilling 133 



General Notes 119 



Graduates 30 



Hand-feed Electric Arc Lamp 43 



Hard Rubber Developing Trays 30 



Hard Rubber Fixing-box ...., 135 



Heliostat . * . , , 42 



