608 



INDEX. 



Liquid mixtures, on the vapour- 

 pressures of binary, 295. 



Livens (G. H.) on the mechanical 

 relations of dielectric and mag- 

 netic polarization, 162 ; on the 

 principle of least action in the 

 theory of electrodynamics, 195 ; 

 on the Hall effect and allied 

 phenomena, 200. 

 Logarithms, on Napier's, 476, 604. 



de Long (0. A.) on diffusion cells in 

 ionized gases, 499. 



Lutetiiun, on the high-frequency 

 spectrum of, 497. 



Magnetic energy, on the mutual, of 

 two moving point charges, 190. 



compass, on the equilibrium 



of the, in aeroplanes, 461. 



held, on electric discharge in a 



transverse, 50. 



polarization, on the mechanical 



relations of dielectric and, 162. 



Magnetometer, on a Wehnelt 

 cathode-ray tube, 381. 



Magneto-optic properties of fluor- 

 escent vapours, on the, 265. 



Makower (Dr. \\ .) on the straggling 

 of alpha particles, 222 ; on the 

 efficiency of recoil of radium D 

 from radium C, 226. 



Mallik (Prof. D. N.) on the electric 

 discharge in a transverse magnetic 

 field, 50. 



Masses, on the existence of mutual 

 induction between, 592. 



Membranes, on vibrations and de- 

 flexions of, 353. 



Mennell (F. P.) on the geology of 

 the northern margin of Dart- 

 moor, 528. 



Mercury, on the high-frequency 

 spectrum of, 39. 



vapour, experiments with elec- 

 tron currents in, 426. 



Metallic films, on the change in the 

 resistance of, after deposition, 

 141. 



Mica, on the dielectric constant and 

 electrical conductivity cf, 112. 



Mirrors, on the reflexion from plane, 

 487. 



Molybdenum, on the high-frequency 

 spectrum of, 497. 



Multiple reflexion, on, 487. 



Musical instruments, on the wolf- 

 note in stringed, 391. 



Napier's logarithms, on, 476, 604. 



Negative ion, on the mobility of the, 

 441. 



Neodymium, en the high-frequency 

 spectrum of, 497. 



Nichols (E. H.) on the diurnal 

 variation of atmospheric elec- 

 trical quantities, 282. 



Nickel, on the Hall and Corbino 

 effects in, 303. 



Niobium, on the high-frequency 

 spectrum of, 497. 



Ogg (Prof. A.) on the crystalline 

 structure of the alkali sulphates, 

 518. 



Osmium, on the high-frequency 

 spectrum of, 39. 



Palladium, on the decrease in the 

 paramagnetism of, caused by ab- 

 sorbed hydrogen, 131; on the 

 high-frequency spectrum of, 497. 



Paramagnetism of palladium, on 

 the decrease in the, caused by 

 absorbed hydrogen, 131. 



Photoelectric effect on thin films of 

 platinum, on the, 421. 



Photographic films, on the tracks of 

 alpha particles in, 129. 



Planck's law of radiation, on a 

 method of deriving, 229. 



Plates, on vibrations and deflexions 

 of, 353. 



Platinum, on the high-frequency 

 spectrum of, 39 ; on the Hall 

 and Corbino effects in, 303 ; on 

 the photoelectric effect on thin 

 films of, 421. 



Plummer (Prof. H. C.) on the 

 boiling-points of homologous com- 

 pounds, 371. 



Point-charges, on the mutual mag- 

 netic energy of two moving, 190. 



Polarization, on the mechanical re- 

 lations of dielectric and, 162. 



Polonium, on the high-frequency 

 spectrum of, 39. - 



Poole (H. H.) on the dielectric 

 constant and electrical conduc- 

 tivity of mica in intense fields, 

 112. 



Praseodymium, on the high-fre- 

 quency spectrum of, 497. 



Eadiation, on a method of deriving 

 Planck's law of, 229. 



Eadium, on the high - frequency 

 spectrum of, 39. 



