| [100.] | Stereoscopic Sciagraphs. | Thomson, E. |
| [101.] | Obtaining Manifold Sciagraphs Simultaneously upon Superposed Photographic Films and through Opaque Materials, and thus Indicating Relative Sensitiveness of Different Films to X-rays. Intensifying Process Applicable in Sciagraphy. Thick Films Appropriate. | Thomson, E. |
| [101a.] | Sciagraph Produced through 150 Sheets of Photographic Paper. | Lumière. |
| [102.] | Discharge Tube Adapted for Both Unidirectional and Alternating Currents. | Thomson, E., and Swinton |
| [103.] | X-rays. Opalescence and Diffusion. | Thomson, E., Pupin, and Lafay |
| [103a.] | Diffusion and Reflection in Relation to Polish. | Imbert, et al. |
| [104.] | Fluorometer. Fluorescing Power of Different Discharge Tubes Compared. | Thomson, E. |
| [105.] | Modified Sciascope for Locating the Source and Direction of X-rays. Phosphorescence Not an Essential Accompaniment in Production of X-rays. | Thomson, E. |
| [106.] | X-rays from Discharge Tube Excited by Wimshurst Machine. Full Details Given of the Electrical Features. | Rice, Pupin, and Morton |
| [107.] | Source of X-rays Determined by Projection through a Small Hole upon Fluorescent Screen Adjustable to Different Positions. | Rice |
| [107a.] | Use of Stops in Sciagraphy. | Leeds and Stokes |
| [107b.] | X-rays from Two Phosphorescent Spots. | Macfarlane, Klink, Webb, Clark, Jones, and Morton |
| [108.] | Source of X-rays Determined by Shadows of Short Tubes. | Stine |
| [109.] | Instructions Concerning Electrical Apparatus for Generating X-rays. | Stine |
| [110.] | Apparent Diffraction Really Due to Penumbral Shadows. | Stine |
| [110a]. | Non-diffraction. | Perrin |
| [159a]. | Non-Refraction | |
| [111.] | Source of X-rays Tested by Interceptance of Assumed Rectilinear Rays from the Cathode. | Scribner and M’Berty |
| [112.] | Source of X-rays on the Inner Surface of the Glass Tube Determined by Pin-hole Images. | Scribner and M’Berty, Perrin |
| [112a]. | Anode Thought to be the Source. Cause of Error Suggested. | De Heen |
| [113.] | Pin-hole Pictures by X-rays Compared with Pin-hole Images by Light to Determine the Source. X-rays Most Powerful when the Anode is the Part Struck by the Cathode Rays. | Lodge |
| [114.] | Valuable Points Concerning Electrical Apparatus Employed. | Lodge |
| [115.] | X-rays Equally Strong during Fatigue of Glass by Phosphorescence. | Lodge |
| [116.] | Area Struck by Cathode Rays Only an Efficient Source when Positively Electrified. | Rowland, Carmichael, and Briggs |
| [117.] | Transposition of Phosphorescent Spot and of Cathode Rays without a Magnet. | Salvioni, Elster, Geitel, and Tesla |
| [117a.] | Molecular Sciagraphs in a Vacuum Tube. | Hammer and Fleming |
CHAPTER X.
| [118.] | X-rays Begin before Striæ End. | Edison and Thomson, E. |
| [119.] | Reason why Thin Walls are Better than Thick. | Edison |
| [120.] | To Prevent Puncture of Discharge Tube by Spark. | Edison |
| [121.] | Variation of Vacuum by Discharge and by Rest. | Edison |
| [122.] | External Electrodes Cause Discharge through a Higher Vacuum than Internal. | Edison |
| [123.] | Profuse Invisible Deposit from Aluminum Cathode. | Edison and Miller |
| [124.] | Possible Application of X-rays. Fluorescent Lamp. | Edison and Ferranti |
| [124a.] | Greater (?) Emission of X-rays by Easily Phosphorescent Materials. | Piltchikoff |
| [125.] | Electrodes of Carborundum. | Edison |
| [126.] | Chemical Decomposition of the Glass of the Discharge Tube Detected by the Spectroscope. | Edison |
| [127.] | Sciagraphs. Duration of Exposure Dependent upon Distances. | Edison |
| [128.] | Differences between X-rays and Light Illustrated by Different Photographic Plates. Times of Exposure. | Edison, Frost, Chappin, Imbert, Bertin-Sans, and Meslin |
| [128a.] | Georges Meslins insured a reduction of time for taking sciagraphs by the deflection of the cathode rays by means of a magnetic field | |
| [129.] | Size of Discharge Tube to Employ for Given Apparatus. | Edison |
| [130.] | Preventing Puncture at the Phosphorescent Spot. | Edison |
| [131.] | Instruction Regarding the Electrical Apparatus. | Edison and Pupin |
| [132.] | Salts Fluorescent by X-rays. 1800 Chemicals Tested. | Edison |
| [133.] | X-rays Apparently Passed around a Corner. Theoretical Consideration by Himself and Others. | Edison, Elihu Thomson, Anthony, et al. |
| [134.] | Permeability of Different Substances to X-rays. A List of a Variety of Materials. | Edison and Terry |
| [134a.] | Illustration of Penetrating Power of Light. | Hodges |
| [135.] | Penetrating Power of X-rays Increased by Reduction of Temperature. Tube Immersed in Oil, and the Oil Vessel in Ice. X-rays Transmitted through Steel 1/8 in. Thick. | Edison |
| [136.] | X-rays Not Obtainable from Other Sources than Discharge Tube. | Edison, Rowland, et al. |
CHAPTER XI.
| [137.] | Kind of Electrical Apparatus for Operating Discharge Tube for Powerful X-rays. | Tesla and Shallenberger |
| [138.] | How to Maintain the Phosphorescent Spot Cool. | Tesla |
| [139.] | Expulsion of Material Particles through the Walls of a Discharge Tube. | Tesla |
| [139a.] | Giving to X-rays the Property of Being Deflected by a Magnet. | Lafay and Lodge |
| [139b.] | Penetration of Molecules into the Glass of the Discharge Tube. | Gouy |
| [140.] | Vacuum Tubes Surrounded by a Violet Halo. | Tesla and Hammer |
| [141.] | Anæsthetic Properties of X-rays. | Tesla and Edison |
| [142.] and [142a]. | Sciagraphs of Hair, Fur, etc., by X-rays. Pulsation of Heat detected. | Tesla, Morton, and Norton |
| [143.] | Propagation of X-rays through Air to Distances of 60 ft. | Tesla |
| [144.] | X-rays with Moderate Vacuum and High Potential. | Tesla |
| [145.] | Detailed Construction and Use of Single Electrode Discharge Tubes for Generating X-rays. | Tesla |
| [146.] | Percentage of Reflection. | Tesla and Rood |
| [146a.] | Reflected and Transmitted Rays Compared. Practical Application of Reflection in Sciagraphy. Analogy between Reflecting Power of Metals and their Position in the Electro-positive Series. | Tesla |
| [147.] | Discharge Tube Immersed in Oil. Rays Transmitted through Iron, Copper, and Brass, 1/4 in. Thick. | Tesla |
| [148.] | Bodies Not Made Conductors when Struck by X-rays. | Tesla |
| [149.] | Non-conductors Made Conductors by a Current. | Appleyard |
| [149a.] | Appleyard’s Experiment. Non-conductors Made Conductors by Current. | |
| [150.] | Electrical Resistance of Bodies Lowered by the Action of Electro-magnetic Waves. | Minchin |
CHAPTER XII.
| [151.] | Sciagraphic Plates Combined with Fluorescent Salts. | Pupin, Swinton, and Henry. |
| [152.] | Penetrating Power of X-rays Varies with the Vacuum. | Thompson, S. P. |
| [153.] | Reduction of Contact Potential of Metals by X-rays. | Murray |
| [154.] | Transparencies of Objects to X-rays Not Influenced by the Color. Detected by Simultaneous Photographic Impressions. | Nodon, Lumière, Bleunard, and Labesse |
| [155.] | Chlorine, Iodine, Sulphur, and Phosphorus Combined with Organic Materials Increase Opacity. | Meslans, Bleunard, and Labesse |
| [156.] | Application of X-rays to Distinguish Diamonds and Jet from Imitations. | Buquet, Gascard, and Thompson, S. P. |
| [157.] | Inactive Discharge Tubes Made Luminous by X-rays. | Dufour |
| [158.] | Non-refraction in a Vacuum. | Beaulard |
| [159.] | Bas-relief Sciagraphs by X-rays. | Carpentier and Miller |
| [160.] | Transparency of Eye Determined by Sciagraph of Bullet Therein. | Wuillomenet |
| [161.] | Mineral Substances Detected in Vegetable and Animal Products. | Ranwez |
| [162.] | Hertz Waves and Roentgen Rays Not Identical. | Errera |
| [163.] | Non-mechanical Action by X-rays Determined by the Radiometer. | Gossart |
| [164.] | X-rays within Discharge Tube. | Battelli |
| [165.] | Combined Camera and Sciascope. | Bleyer |
| [166.] | Non-polarization of X-rays. | Thompson, S. P., Macintyre |
| [167.] | Diffuse Reflection. Dust Figures Indirectly by X-rays. | Thompson, S. P. |
| [168.] | Continuation of Experiments in [§ 113]. | Lodge |
| [169.] | Thermopile Inert to X-rays. | Porter |
| [170.] | Non-diffraction of X-rays. | Magie |
| [171.] | Resistance of Selenium Reduced by X-rays. | Giltay and Haga |
Total number of sections to this place, 199.
CHAPTER XIII.
| [200.] | Needle Located by X-rays and then Removed. | Hogarth |
| [201.] | Needle Located at Scalpel by X-rays and then Removed. | Savary |
| [202.] | Diagnosis with Fluorescent Screen. | Renton and Somerville |
| [203.] | Bullet Located by Five Sciagraphs. | Miller |
| [204.] | Bones in Apposition Discovered by X-rays and afterward Remedied by Operation. Other Cases. | Miller |
| [204a.] | Necrosis. | Miller |
| [205.] | Application of X-rays in Dentistry. | Morton |
| [206.] | Elements of the Thorax. | Morton |
| [207.] | A Colles’ Fracture Detected by X-rays. | Morton |
| [208.] | Motions of Liver, Outlines of Spleen, and Tuberculosis Indicated. | Morton and Williams |
| [209.] | Osteomyelitis distinguished from Periostitis. | Lannelongue, Barthelemy, and Oudin. |
| [210.] | Concluding Miscellaneous Experiments Relating to Similar Applications of X-rays. | Ashhurst, Packard, Müller, Keen, and Morton, T. G. |