INDEX. 



715 



of systems affected with small 

 rotatory terms, 293 ; on the vibra- 

 tions of a rectangular sheet of 

 rotating liquid, 297 ; on the pro- 

 portion of argon in the vapour 

 rising from liquid air, 677. 



Resistance comparator, on a, 672. 



Resolving-power of prism-trains, on 

 the effect of absorption on the, 

 355. 



Reversed lines in the spectra of 

 gases, on, 153, 524. 



Reynolds (Prof S. H.) on Jurassic 

 strata cut through by the S. Wales 

 direct line, 175. 



Rontgen rays, on the charge on the 

 ions produced in air by, 429. 



Ruuge (C.) on the position of radium 

 in the periodic system, 476. 



Rutherford (Prof. E.) on excited 

 radioactivity and the method of 

 its transmission, 95 j on the mag- 

 netic and electric deviation of the 

 easily absorbed rays from radium, 

 177 ; on the radioactivity of ura- 

 nium, 441 ; on the radioactivity of 



. radium and thorium, 445 ; remarks 

 on radioactivity, 481 ; on conden- 

 sation of the radioactive emana- 

 tions, 561 ; on radioactive change, 

 576. 



Schuster (Prof. A.) on the influence 

 of radiation on the transmission of 

 heat, 243 ; on the spectrum of an 

 irregular disturbance, 344. 



Screens transparent only to ultra- 

 violet light, on, 257. 



Shimizu (S.) on the Wiedemann 

 effect in ferromagnetic substances, 

 650. 



Smith (S. W. J.) on a portable capil- 

 lary electrometer, 398. 



Soddy (F.) on" the radioactivity of 

 uranium, 441 ; on the radioactivity 

 of radium and thorium, 445 ; on 

 condensation of the radioactive 

 emanations. 561 ; on radioactive 

 change, 576. 



Solar spectrum, on the constitution 

 of the H and K lines of the, 

 524. 



Solid, on the thickness of a liquid 

 film formed on a, by condensation, 

 517; on the heat evolved on con- 

 tact of a liquid with a finely- 

 divided, 595. 



Solubilities, on the connexion be- 

 tween freezing -points, boiling- 

 points, and, 405. 



Solutions, on new magneto - optic 

 phenomena exhibited by magnetic, 

 486. 



Specific heats, on the ratio of the, 

 for air and steam, 226. 



Spectra of hydrogen, on the, and 

 reversed lines in the spectra of 

 gases, 153, 254 ; on the relation- 

 ship between the, of elements and 

 the squares of their atomic weights, 

 203. 



Spectropolariscope, on a sensitive- 

 strip, 161. 



Spectrum of an irregular disturbance, 

 on the, 238, 344; on the, of radium, 

 476 ; on the constitution of the H 

 and K lines of the solar, 524. 



Spectrum photography, on the use of 

 screens transparent only to ultra- 

 violet light in, 257. 



Spin of an egg, on the, 458. 



Steam, on the ratio of the specific 

 heats for, 223. 



Stephens (F. J.) on the geology of 

 the North-West Provinces, 385. 



Stokes' (Sir G. (Jr.) work in optics, 

 remarks on, 237. 



Stoney (Dr. G. J.) on the resolution 

 of light into uniform undulations 

 of flat wavelets applied to the 

 investigation of optical pheno- 

 mena, 264. 



Strutt (Hon. R. J.) on the radio- 

 activity of ordinary materials, 680. 



Taylor (Dr. W. W.)" on the theory 

 of the aluminium anode, 301. 



Telephonic transmission, on loaded 

 lines in, 313. 



Telescopic vision, on, 674. 



Temperature, ou the effect of, on the 

 hysteresis loss in iron, 117. 



Thermal conductivity, on the in- 

 fluence of magnetic field on, 529. 



Thermocouple measurements, on a 

 potentiometer for, 668. 



Thermoelectric properties of crystal- 

 line bismuth, on the. 141. 



Thermometer, on the thermody- 

 namical correction of the gas-, 48. 



Thermostat, animal, 198. 



Thomson (Prof. J. J.) on the charge 

 of electricity carried by a gaseous 

 ion, 346. 



