- Corpuscle (see Electron)
- Crookes, Sir W. spectrum of radium, 17 spectrum of polonium, 23 nature of cathode rays, 73 nature of α rays, 142 scintillations produced by radium, 158 spinthariscope, 158 number of scintillations independent of pressure and temperature, 159 phosphorescence of diamond, 204 separation of Ur X, 219 theory of radio-activity, 441
- Crookes and Dewar absence of nitrogen spectrum in phosphorescent light of radium at low pressures, 206
- Crystallization effect of, on activity of uranium, 349
- Curie, Mme permanence of uranium rays, 6 discovery of radio-activity of thorium, 10 radio-activity of uranium and thorium minerals, 11 relative activity of compounds of uranium, 12 coloration of radium crystals, 15 spectrum of radium, 16 discovery of polonium, 22 nature of a rays, 142 absorption of α rays from polonium, 163 secondary radiation tested by electric method, 188 slowly decaying excited activity from radium, 311 recovery of activity of radium, 375 bismuth made active by solution of barium, 417
- Curie, P. magnetic deviation of radium rays by electric method, 114 conductivity of dielectrics under radium rays, 209 radio-activity of radium unaffected by temperature, 210 decay of activity of radium emanation, 247 discovery of excited radio-activity from radium, 295 heat emission of radium at low temperature and variation of heat emission with age of radium, 419 nature of the emanation, 439
- Curie, M. et Mme discovery of radium, 13 charge carried by β rays, 121 luminosity of radium compounds, 205 production of ozone by radium rays, 213 coloration of glass by radium rays, 213 theory of radio-activity, 439 possible absorption by radio-elements of unknown radiations, 442
- Curie, J. et P. quartz piezo-électrique, 105 et seq.
- Curie, P. et Danne diffusion of radio-active emanation, 272 decay of excited activity from radium, 309 decay curves of radium and equation, 309 occlusion of radium emanation in solids, 310 changes in radium, 381 effect of temperature on active deposit, 390
- Curie, P. and Debierne evolution of gas from radium, 215 active gases evolved from radium, 251 phosphorescence produced by radium emanation, 252 distribution of luminosity, 252 rate of production of emanation independent of pressure, 266 effect of pressure on amount of excited activity, 266, 317
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INDEX.
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