Contents

Page
Amstutz Machines[73]
A. T. & T. Co. Pictures[85]
Baker’s Scheme[77]
Belin Machine[83]
Braun Tube Receiver[91]
Capillary Pen[46]
Circuits, radio[117]
Code Pictures[89]
Color by Radio[93]
Control Fork[29]
Corona Lamp[51]
Dot Pictures[88]
Duplex Machine[105]
Electrograph of 1900[75]
Electrolytic Receivers[46]
Engraving Receiver[73]
Eye Radio Service[39]
Filament Lamp[28], [50]
First Radio Channel[67]
First Picture Machine[120]
Fournier and Rignoux[81]
Galvanometer[48]
Genesis of Radio[127]
Glow Lamp[29]
Halftone, filled in[41]
High Speed Camera[125]
Historical Sketch, Jenkins[118]
Hook-ups—Jenkins[117]
Initial Activities[25]
Ink Pen Receivers[46]
Korn, Dr., Machine[79]
Lens Drum Machine[116]
Lens Disc Machine[114], [115]
Light Cell[42]
Light Sources[112]
Light Wedge[48]
Mechanisms employed[40]
Medals[121]–[126]
Motion Picture Projector[120]
Multiple Signals[30]
Nipkow & Sutton[71]
Oscillograph Receiver[47]
Patents, list of[132]
Perforated Strips[43]
Photographic Receiver[47]
Pneumatic Valve[49]
Prismatic Ring 25,[98], [110]
Prismatic Ring Machines[95]
Radio Circuits[117]
Radio Corp. Pictures[87]
Radio Motor[30]
Radio Vision[33]
Radio Vision Machines[109]
Receiving Machines[45]
Receiving Methods[26]
Sending Machines[40]
Sources of Light[112]
Spark-Gap Source[50]
Strip Machine[103]
Stroboscopic Lamp[30]
Sutton & Nipkow[71]
Swelled Gelatin[41]
Synchronizing Forks[101]
Talking Machine[107]
Transmitting Methods[25]
Washington[133]
Zinc Etching[40]