INDEX. 



609 



Radium A, on the tracks of the alpha 

 particles from, in photographic 

 films, 129. 



D, on the efficiency of recoil 



of, from radium 0, 226. 



Raffety (0. W.) on the spectra of 

 carbon and hydrocarbon, 546. 



Raman (Prof. 0. V.) on the wolf- 

 note in bowed stringed instru- 

 ments, 391. 



Ratner (S.) on the mobility of the 

 negative ion, 441. 



Rayleigh (Lord) on the flow of 

 compressible fluid past an ob- 

 stacle, 1 ; on the discharge of 

 gases under high pressures, 177; 

 on the energy acquired by small 

 resonators from incident waves 

 of like period, 188 : on vibrations 

 and deflexions of membranes, 

 bars, and plates, 353 ; on con- 

 vection currents in a horizontal 

 layer of fluid, when the higher 

 temperature is on the under side, 

 529. 



Reflexion, on multiple, 487. 



Refraction of X-radiation, on the, 

 603. 



Refractive index of glass, on a new 

 method of measuring the, 409. 



Resonance radiation of mercury 

 vapour, on the, 329. 



spectrum of fluorescent vapours, 



on the, 265. 



Resonators, on the energy acquired 

 by small, from incident waves of 

 like period, 188. 



Rhodium, on the high-frequency 

 spectrum of, 497. 



Richardson (Prof. O. W.) on experi- 

 ments with electron currents in 

 different gases, 426. 



Robinson (Dr. J.) on the photo- 

 electric effect on thin films of 

 platinum, 421. 



Rubidium, on the high-frequency 

 spectrum of, 497. 



Ruthenium, on the high-frequency 

 spectrum of, 497. 



Samarium, on the high-frequency 

 spectrum of, 497. 



Siegbahn (Dr. M.) on the high- 

 frequency spectra of the elements 

 tantalum-uranium, 39 ; on an X- 

 ray vacuum spectrograph, 494. 



Silberstein (Dr. L.) on fluorescent 

 vapours and their magneto-optic 



properties, 265 ; on multiple re- 

 flexion, 487. 

 Silver, on the Hall and Corbino 



effects in, 303 ; on the high- 

 frequency spectrum of, 497. 

 Spectra, on the high-frequency, of 



the elements tantalum-uranium, 



39 ; on the high-frequency, of the 



elements lutetium-zinc, 497. 

 Spectrograph, on an X-ray vacuum, 



494. 

 Spectrum line, on the Stark effect 



of the 4686, 327. 

 Stainer (W. W.) on the existence 



of mutual induction between 



masses, 592. 

 Starling (S. G.) on the equilibrium 



of the magnetic compass in aero- 

 planes, 461. 

 Strahan (Dr. A.) on cores from 



borings in Kent, 527. 

 Strontium, on the high-frequency 



spectrum of, 497. 

 Swann spectrum, on the, 546. 

 Tantalum, on the high-frequency 



spectrum of, 39. 

 Tellurium, on the high-frequency 



spectrum of, 497. 

 Terbium, on the high - frequency 



spectrum of, 497. 

 Thallium, on the high-frequency 



spectrum of, 39. 

 Thin-plate beam, on the strength 



of the, 172. 

 Thorium, on the high-frequency 



spectrum of, 39. 

 Thornton (Prof. W. M.) on the 



cause of lowered dielectric 



strength in high-frequency fields, 



242. 

 Tin, on the high-frequency spectrum 



of, 497 ; on the Hall and Corbino 



effects in alloys of, 309. 

 Tinker (F.) on the vapour-pressures 



of binary liquid mixtures, 295. 

 Tubes, on the collapse of short thin, 



559. 

 Tungsten, on the high-frequency 



spectrum of, 39. 

 Tyrrell (G. W.) on the picrite- 



teschenite sill of Lugar, 175. 

 Uranium, on the high-frequency 



spectrum of, 39. 

 Vacuum-tubes, on the absorption 



of gases in, 239. 

 Valency volumes, on the crystallo- 



graphic law of, 518. 



Phil. Mag. S. 6. Vol. 32. No. 192. Dec. 1916. 



2T 



