The London, Edinburgh and Dublin philosophical magazine and journal of science . Does Motion through the iEther causeDouble Refraction ? • 67s Mr. J. A. Cunningham on the Discharge of Electricity throughGases and the Temperature of the Electrodes 684 Prof. E. Butherford and Mr. S. J. Allen on Excited Badio-activity and Ionization of the Atmosphere 704 Vlll CONTENTS OF VOL. IV. SIXTH SERIES. PageJSToties respecting New Books :— Harpers Scientific Memoirs 724 Prof. H. A. Lorentzs Sichtbare nnd Unsichtbare Beweg- ungen 725 Electrochemical Industry 725 Index 726 PLATES. I. & II. Illustrative of Dr
The London, Edinburgh and Dublin philosophical magazine and journal of science . Does Motion through the iEther causeDouble Refraction ? • 67s Mr. J. A. Cunningham on the Discharge of Electricity throughGases and the Temperature of the Electrodes 684 Prof. E. Butherford and Mr. S. J. Allen on Excited Badio-activity and Ionization of the Atmosphere 704 Vlll CONTENTS OF VOL. IV. SIXTH SERIES. PageJSToties respecting New Books :— Harpers Scientific Memoirs 724 Prof. H. A. Lorentzs Sichtbare nnd Unsichtbare Beweg- ungen 725 Electrochemical Industry 725 Index 726 PLATES. I. & II. Illustrative of Dr. J. II. Vincents Paper on a General NumericalConnexion between the Atomic Weights. III. Illustrative of Prof. J. Trowbridges Paper on Spectra arising from the Dissociation of Water Vapour. IV. Illustrative of Dr. G. Johnstone Stoneys Paper on the Law of Atomic Weights. V. & VI. Illustrative of Dr. J. T. Bottomleys Paper on Radiation of Heat and Light from Heated Solid Bodies. INDEXED. THELONDON, EDINBURGH, and DUBLIN PHILOSOPHICAL MAGAZINE AND JOURNAL OF [SIXTH SEME JULY 1902. s- I. Comparison of the Radiations from Radioactive Substance sBy E. Rutherford, , , Macdonald Professor ofPhysics, and Miss H. T. Brooks, ,McGill University,Montreal *. ALL the radioactive substances possess in common thepower of acting on a photographic plate and of ionizino-the gas in their immediate neighbourhood. The intensity ofthe radiations may be compared by means of the photographicor electrical action ; and in the case of the strongly radio-active substances by the power of lighting up a fluorescentscreen. Such comparisons, however, do not throw any lighton the question whether the radiations are of the same or ofdifferent kinds. It is well known that such different typesof radiation as the short waves of ultra-violet light, Rontgenand cathode rays all possess the property of producing ionsthroughout the volume of the gas, lighting up a fluorescentscreen and acting on
Size: 1880px × 1329px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1840, booksubjectscience, bookyear1840
