548 



INDEX. 



Radiation of low refrangibility,on the 

 transmission of, through ebonite, 

 400. 



Radiophony, on, 78. 



Rayleigh (Lord) on copying diffrac- 

 tion-gratings, 196; on images 

 formed without reflection or re- 

 fraction, 214. 



Relationships, on the analysis of, 4:36. 



Resistances, on the measurement of 

 small, 291. 



Reynolds (Prof. 0.) on certain di- 

 mensional properties of matter in 

 the gaseous state, 335. 



Roberts (Prof. W. C.) on the deter- 

 mination of the density of fluid 

 bismuth, 295. 



Rontgen (Prof. W. C.) on tones pro- 

 duced by the intermittent radiation 

 of a gas, 308. 



Rosenstiehl (A.) on the determination 

 of the fundamental colour-sensa- 

 tions, 222, 305. 



Rowland (Prof. H. A.) on the elec- 

 tric absorption of crystals, 414 ; on 

 the new theory of magnetic attrac- 

 tions, and the magnetic rotation of 

 polarized light, 254. 



Schwendler (L.) on some experi- 

 ments in telegraphy, 221. 



Selenium, on the effect of tempera- 

 ture on the electrical resistance of, 

 302. 



Shida (R.) on the number of electro- 

 static units in the electromagnetic 

 unit, 473. 



Solar radiation, on the absorption of, 

 by the carbonic acid of the atmo- 

 sphere, 76. 



spectrum, on the phosphorograph 



of a, and on the lines in its infra- 

 red region, 157, 300. 



Sonorescence, on the term, 377. 



Sound, on the rectilinear transmission 

 and spontaneous diffusion of, 249 ; 

 on a convenient term expressing 

 the change of radiant heat and 

 light into, 377 ; on the production 

 of, by radiant energy, 510. 



Spectrophone, on the construction of 

 the, 527. 



Spectrophotometers, on, 155. 



Spectroscopic observations, 91. 



Spectrum-telescope, on a, 110. 



Stereoscopic vision, on, 507. 



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

 units of Nature, 381. 



Strove (0.) on the correction of lati- 

 tudes for local attraction, 314. 



Sun, on the constitution of the, 91. 



Telegraphy, on some experiments in. 

 221. 



Thompson (Prof. S. P.) on the con- 

 struction of the photophone, 286. 



Thomson (J. J.) on the electric and 

 magnetic effects produced by the 

 motion of electrified bodies, 229. 



Tones produced by the intermittent 

 radiation of a gas, on the, 308. 



Tourmaline, on the liberation of the 

 electricity in, by pressure, 224. 



Tribe (A.) on an electrochemical 

 method of investigating the field 

 of electrolytic action, 446; on 

 thermal electrolysis, 508. 



Trowbridge (J.) on the effect of great 

 cold upon magnetism, 393. 



Vapours, on the absorption of dark 

 heat-rays by, 1. 



Villari (E.) on the internal discharges 

 of electrical condensers, 541. 



Vision, on stereoscopic, 507. 



Voltaic action, on the theory of, 212. 



Wanklyn (J. A.) on some new appa- 

 ratus for use in gas-analysis, 534. 



Watson (H. W.) on the law of force 

 between electric currents, 451. 



Watts (J. I.) on the specific volumes 

 of oxides, 60. 



Wheeler (A. W.) on the coefficient 

 of expansion of gas-solutions, 113. 



Wright (Dr. C. R. A.) on the deter- 

 mination of chemical affinity in 

 terms of electromotive force, 169, 

 261, 348. 



Wrightson (T.) on the determina- 

 tion of the density of fluid bismuth, 

 295. 



END OF THE ELEVENTH VOLUME. 



Printed by Taylor and Fiuncis, Red Lion Court, Fleet Street. 



