u 



hn^A^% 



..... 



532 



INDEX. 



Bidb.ard.son (Prof. 0. W.) on the 



limiting- frequency in the spectra 

 of helium, hydrogen, and mercury 

 in the extreme ultra-violet, 285. 



Rutherford (Sir E.) on the pene- 

 trating power of the X radiation 

 from a Coolidge tube, 153. 



Shorter (Dr. S. A.) on osmotic equi- 

 librium, 31 ; on the kinetic theory 

 of the ideal dilute solution, 521. 



Sibly (Dr. T. F.) on the carboni- 

 ferous limestone series of the 

 South Wales coalfield, 382. 



Sodium vapour, on the ionizing 

 potential of, 176. 



Solutions, on the kinetic theory of 

 dilute, 521. 



Specific heat, on the thermodynamic 

 cycles with variable, 168. 



Spectra of helium, hydrogen, and 

 mercury in the extreme ultra- 

 violet, on the, 285. 



Spectrum, on the origin of the line, 

 emitted by iron vapour in the 

 air-coal gas flame, 221. 



Spherical cavity, on the pressure 

 developed in a liquid during the 

 collapse of a, 94. 



Spinning projectile, on the motion 

 of a, 332. 



Steel wire, on the maintenance of 

 vibrations in a, by a periodic field 

 of force, 129. 



Telephone, on the audibility factor 

 of a shunted, 184. 



Thermal diffusion, on the partial 

 separation of gases b}% 146. 



efhciencY, on an expression 



for, 168. 



Thermionic currents, on the applica- 

 tion of, to the study of ionization 

 by collision, 461. 



Thermodynamic cycles with variable 

 specific heat, on, 168. 



Thomas (Miss N.) on evaporation 

 from a circular water surface, 

 308. 



Thornton (Prof. W. M.) on the 

 nature of chemical affinity in the 

 combustion of organic compounds, 

 68 : on the curves of the periodic 

 law, 70. 



Tinker (Dr. F.) on the kinetic theory 

 of dilute solutions, 521. 



Ultra-violet spectra of helium, 

 hvdrogen, and mercury, on the, 

 285. 



Vibrations, on the maintenance of, 

 by a periodic field of force, 129 ; 

 on, under variable couplings, 246, 

 510. 



Volume distributions, on the failure 

 of Poisson's equation for certain, 

 138. 



van der Waals' equation, on the 

 application of, to magnetism, 

 380. 



Walker (W. J.) on thermodynamic 

 cycles with variable specific heat, 

 168. 



Water surface, on evaporation from 

 a circular, 308. 



Wellisch (E. M.) on the motion of 

 ions and electrons through gases, 

 33. 



White (Miss M. P.) on the absorp- 

 tion and scattering of X-rays and 

 the characteristic radiations of 

 J series, 270. 



Wireless signals, on the measure- 

 ment of the strength of, 184. 



X radiation, on the penetrating 

 power of the, from a Coolidge 

 tube, 153. 



X rays, on the absorption and scat- 

 tering of, 270. 



Wood ( Prof. R. W.) on the ionizing 

 potential of sodium vapour, 177. 



END OF THE THIRTY-FOURTH VOLUME. 



Printed by Taylor and Francis, "Red Lion Court, Fleet Street. 





