INDEX 



radiation correction, 337 



radical, 272 



radio, 13 '' 



radium atom, 5 



railroads, 13 



Randall, M., 114, 129 



random current density, 382 



random distribution of the molecules, 

 274 



random flux density, 382 



range of concentration, 206 



Raoult's law, 80, 238 



rate of condensation, 212, 343 



rates of condensation and evapora- 

 tion, 369 



rate of diffusion, 201 



rate of dissociation of hydrogen, 133 



rate of evaporation, 53, 54, 56, 65, 106, 

 107, 144, 231, 232, 291, 296, 297, 

 326. 343, 385 



rate of evaporation v, 48 



rate of formation of active hydro- 

 gen, 197 



rate of interchange, 383 



rates of interchange atoms, 376 



rate of radiation of energy, 144 



rate of relaxation, 318 



Rate of Surface Heating, 137, 138, 

 139, 140 



rationing of food, 29 



reaction velocity, 63, 64 



recombination of hydrogen atoms, 

 133, 135, 140 " 



reduced oxides, 124 



reducing action, 121, 144 



reevaporation, 329, 370 



reevaporation theory, 295 



reflection, 289, 290, 295, 296, 297, 

 305, 308, 310, 319 



reflection coefficient, 9, 289, 373 



reflection of atoms, 313 



reflection of cadmium atoms, 289 



reflectivity, 297, 300, 301, 304, 321 



reflectivity of gas, 300 



reflection of gas molecules, 295 



reflectivity of molecules, 299 



refractive index, 242, 266 



refractory substances, 142 



relative distribution of molecules, 42 



relativity theory, 3 



remote regions, 371 



repulsion, 314 



repulsive forces, 55, 60, 61, 62, 219, 



220, 221, 263, 264, 310, 387, 388, 



392 

 research, 21 

 Research Laboratory of the General 



Electric Company, 101 

 residual atomic charge, 392, 396 

 residual charge, 393, 395, 398 

 residual gas, 36, 104, 132 

 residual valence, 68, 309 

 resonance radiation, 285, 286, 287 

 Retgers, 247 



retarding field for ions, 331, 361 

 reversibility principle, 326, 372 

 Rice, E. W., VIII 

 Rockfellers, 14 

 Rock salt, 317 

 Rodebush, 400 



rubber, and many others, 13 

 rubidium, 325 

 rubidium ions, 356 



Russia, 17, 18, 19, 21, 26, 27, 28, 30 

 Russians 28, 29, 30, 31 

 Russian Academy of Sciences, 18 

 Russian government, 19 

 Russian system, 20 

 Rutherford, 388 

 RX, 272 



S, 41 



Saha equation, 57, 345 



salts, 68, 244, 394, 398 



saturated aliphatic hydrocarbons, 41 



saturated caesium vapor, 378 



saturated liquid hydrocarbon, 43 



saturated vapor, 170 



saturation, 309, 356, 377 



saturation current, 286, 287 



saturation current density, 361 



saturation ion current, 363 



Schaefer, Dr. Vincent J., X 



Schmidt, G. C., 81 



431 



