I N D E X. 



1143 



Robertson (F. S.) on the effect of 

 gases on contact difference of 

 potential, 162 ; on contact differ- 

 ence ot potential and thermionic 

 emission, 557. 



Rontgenograms of strained crystals, 

 on, 204. 



Sano (S.) on a therrnodynamical 

 theory of surface tension, 649. 



Satterly (J.) on the measurement of 

 absolute viscosity, 1024. 



Scales, on the relation between the 

 projective and metrical, 420. 



Schlundt (Prof. H.) on the number 

 of alpha-particles emitted per 

 second by thorium C, 1038. 



Scientific inquiry, on the funda- 

 mental principles of, 397, 398. 



Selection principle, on the, §59, 1112. 



Sen (Prof. B. M.) on the kinetic 

 theory of solids and the partition 

 of thermal energy, 672, 683. 



Sethi (Dr. N. K.) on the convection 

 of light in moving gases, 447. 



Shenstone (A. G.) on induced radio- 

 activity resulting from alpha-ray 

 bombardment, 938 : on the number 

 of alpha-particles emitted per 

 second by thorium C, 1038. 



Silberstein (Dr. L.) on the relation 

 between the projective and metrical 

 scales, 420. 



Silver, on the absorption of the K X- 

 rays of, in gases, 381. 



Simons (Dr. L.) on an apparatus for 

 observation of the gravitational 

 electrostatic field, 143. 



Simultaneity and the aether, on, 528. 



Slate (Prof. F.) on a graphical syn- 

 thesis of the linear vector function, 

 545. 



Soap solutions, on the surface tension 

 of. 663. 



Solar gravitational field, on the de- 

 flexion of a ray of light in the, 580. 



Solids, on the application of the 

 electron theoryof chemistry to, 721'. 



Solutions, on the thermodymics of, 

 606. 



Sound waves, on the analysis of, by 

 the cochlea, 349. 



Spark lines, on the occurrence of, in 

 the arc, 287, 834. 



Spath hemitrope, on the rings and 

 brushes observed in a, 560. 



Specific heat, on the effect of variable, 

 on the discharge of gases through 

 nozzles, 589 ; on the, of ammonia, 



sulphur dioxide, and carbon 



dioxide, 369. 

 Spectra, on the, of X-rays, 1070. 

 Spectral lines, on the effect of an 



electric field upon, 943. 



shift, on the Einstein, 396. 



Spectrograph, on the mass-, 514. 

 Spectrophotometer, on a double slit, 



662. 

 Spectrum, on Brewster's radiant, 357. 

 Spruce, on Young's modulus and 



Poisson's ratio for, 871. 

 Stability, on kinetic, 70. 

 Stansfield (J.) on banded precipitates 



of vivianite, 640. 

 Stark effect, on un symmetrical com- 

 ponents in the, 943. 

 Steele-Grant microbalance, on the, 



1C56. 

 Stopping power and atomic number, 



on, 477. 

 Stratton (Mrs. K.) on latent heats of 



fusion of benzophenone, phenol, 



and sulphur, 436. 

 Subrahmanyam (G.) on the surface 



tension of soap solutions, 663. 

 Sucksmith (W.j on the application 



of the ultra-micrometer to the 



measurement of small increments 



of temperature, 223. 

 Sulphur, on the latent heat of fusion 



of, 436. 

 dioxide, on the specific heat of, 



369. 

 Surface tension, on the thermo- 

 dynamical theory of, 649 ; on the, 



of soap sol utions, 663. 

 Sutherland's constant S, on, 785. 

 Synge (E. H.) on simultaneity and 



the aether, 528. 

 Tamma (V. S.) on a new optical 



property of biaxial crystals, 510. 

 Temperature, on the application of 



the ultra-micrometer to the meas- 

 urement of, 223. 



— wave, on the form of the, 



^ spreading by conduction, 359. 

 Thermal energv, on the partition of. 



672, 683. 

 properties; on the field of a 



magnet and its, 401. 

 Thermionic emission, on contact 



potential difference and, 557. 

 Thermodynamic and optical fields of 



radiation, on the connexion be- 

 tween the, 641. 

 theory of surface tension, on the, 



649, 



