Roentgen Rays and Phenomena of the Anode and Cathode.

137. TESLA’S EXPERIMENTS. _Elec. Rev._, N.Y., March 11, ’96, page 131, March 18, page 147, April 1, page 171, and April 8, page 183. KIND OF ELECTRICAL APPARATUS FOR OPERATING D...

100. THOMSON’S EXPERIMENTS. _Elect. Eng._, N.Y., Mar. 11, Apr. 8 and Apr. 22, ’96. _Elect. Rev._, N.Y., Apr. 8, ’96, p. 183. STEREOSCOPIC SCIAGRAPHS. _Elect. World_, N.Y., Mar....

53. CROOKES’ EXPERIMENT. DARK SPACE AROUND THE CATHODE. _Lect. Brit. Asso., Shef., Eng._, Aug. 22, ’79.—According to Lenard (_The Electr., Lond._, Mar. 23, ’94) Hittorf discover...

79. ROENTGEN’S EXPERIMENTS. X-RAYS, AND A NEW ART. _Wurz. Physik. Med. Gesell._ Jan. ’95; _Nature_, Lon., Jan. ’96; _The Elect._, Lon. April 24, 96; _Sitz. Wurz. Physik. Inst._...

118. EDISON’S EXPERIMENTS. CHARACTERISTICS OF DISCHARGE TUBE, PHOTOGRAPHIC PLATES, ELECTRICAL APPARATUS, FLUORESCENCE, ETC. _Elec. Eng._, N.Y., Feb. 19, ’96; Mar. 18 and 25; Apr...

65. LENARD’S EXPERIMENTS. CATHODE RAYS OUTSIDE OF THE DISCHARGE TUBE. _Wied. Ann._, Jan., ’94, Vol. LVI., p. 225; _The Elect._, Lon., Mar. 23 and 30, ’94, Apr. 6, ’94; and _Elec...

1. FARADAY’S EXPERIMENT, 1831. SECONDARY CURRENT BY INDUCTION. _Experimental Researches, Proc. Royal. So. 1841._—In brief, the experiment involved the elements illustrated in th...

41. GASSIOT’S EXPERIMENT. STRIAE. TUBE IN PRIMARY CURRENT. CURRENT VIBRATORY. _Phil. Trans._, ’59, p. 137. _Bakerian Lectures. Phil. Trans._, ’58, p. 1. _Proc. R. So._, x., pp....

151. PUPIN AND SWINTON’S EXPERIMENT. SCIAGRAPHIC PLATES COMBINED WITH FLUORESCENT SALTS. _The Elect._, Lon., Apr. 24, ’96.—Prof. Pupin, of Columbia College (_Electricity_, N.Y.,...

Before attempting to discuss the facts now known in regard to the Roentgen phenomena, it is well to review briefly the known ways in which radiant energy may be transmitted.

97_a_. HERTZ’ EXPERIMENTS. ELECTRIFIED BODIES DISCHARGED BY ULTRA-VIOLET LIGHT OF A SPARK AND BY OTHER SOURCES OF LIGHT. _Berlin Akad._ II., p. 487, ’87. _Wied Ann._ XXXI, p. 98...

34. RIESS’S EXPERIMENT. ELECTRIC IMAGES. _Riess’s Reibungs._ vol. 2, § 739.—He laid a coin upon a plate of glass and charged the same electrically about one-half of an hour or m...

200. HOGARTH’S EXPERIMENT. NEEDLE LOCATED BY X-RAYS AND REMOVED. _The Lancet_, Lon., Mar. 28, ’96.—Dr. Hogarth is the medical officer of the general hospital, Nottingham. A youn...

The new form of energy, for which there are two names—to wit, the Roentgen ray and the X-ray—is radiated from a highly exhausted discharge tube, which may be energized by an ind...

28. DAVY, BANCALARI AND QUET’S EXPERIMENTS. ELECTRIC ARC, MAGNETISM AND FLAME. SOUND PRODUCED. PRACTICAL APPLICATION OF ELECTRIC ARC. _Phil. Mag._, 1801.—When the electric arc,...

14 and Spark. Penetrating Power. Conducting KNOCHENHAURER, 14_a_. Power of Gas. Relation of E. M. F. to BOLTZMANN, Pressure of Gases. Discharge through THOMSON Hydrogen Vacuum C...

101. Obtaining Manifold Sciagraphs THOMSON, E. Simultaneously upon Superposed Photographic Films and through Opaque Materials, and thus Indicating Relative Sensitiveness of Diff...

70. Photographic Action by External Cathode LENARD Rays and at Points beyond the Glow. No Other Chemical Power Probable. Shadows of Objects by Light and by External Cathode Rays...