1030 



INDEX. 



Multiplication of large numbers, on 

 the mental, 390, 872. 



Narayan (A. L.) on the sounds of 

 splashes, 773. 



Neutrons, on the presence of, in a 

 discharge tube, 596. 



Nuclei, on the constitution and sta- 

 bility of, 305. 



Nickel, on the viscosity of, 115 : on 

 the variation of the rigidity of, 

 with temperature, 106. 



Nitrogen, on the rate of solution of 

 atmospheric, by water, 87 ; on an 

 apparatus for preparing small 

 quantities of pure, 246 ; on loug- 

 range particles from, 813. 



Non-radiating atoms, on, 595. 



Northlight investigations, on recent 

 results of, 47, 1019. 



Ogg (Prof. A.) on the crystalline 

 structure of antimony and bis- 

 muth, 163. 



Ono (Prof. A.) on the first root of 

 Bessel functions of fractional order, 

 1020. 



Oscillations, on electric, in straight 

 wires and solenoids, 265 ; on the 

 decay of, of a solid body in a 

 viscous fluid, 620. 



Oxygen, on the rate of solution of 

 atmospheric, by water, 87. 



Paraffin wax, on the electrical con- 

 ductivity of, 498. 



Pars (L. A.) on the Lorentz trans- 

 formation, 249. 



Pendulums, on triple, with mutual 

 interaction, 17. 



Periodic table, on a modification of 

 the, 287. 



Phosphine, on the viscosity and 

 molecular dimensions of, 601. 



Photoelectric effect, on the effect of 

 an electric current on the. 279, 

 596. 



properties and magnetic state 



of iron, on the, 339. 



Pidduck (F. B.) on a method of 

 measuring the self-inductance of 

 small loops, 220. 



Piezoelectric method of measuring- 

 explosion pressures, on a, 473. 



Planetary orbits, on the forms of, 

 on the theory of relativity, 511. 



Plates, on the colours of mixed, 679. 



Platinum, on the variation of the 

 rigiditv of, with temperature, 

 409. 



Platinum wires, on the mutual ac- 

 tion of convection currents from 

 heated, 940. 



Plimpton (S. J.) on the scattering 

 of rays in X-ray diffraction, 302. 



Pol (Dr. B. van der) on the form of 

 free triode vibrations, 201. 



Poles of the electric arc, manometric 

 observations at the, 956; on the 

 forces acting upon the, 972. 



Poole (Dr. H. H.) on the electrical 

 conductivity of some dielectrics, 

 488. 



Poole (J. H. J.) on a connexion be- 

 tween the magnetic state of iron 

 and its photoelectric properties,339. 



Potassium, on the mass spectra of, 

 436. 



vapour, on the dispersion of 



light by, 289. 



Probability, on the theory of, in 

 scientific inquiry, 369. 



Quanta, on Faraday's magnetic lines 

 as, 523 ; on escapements and, 592. 



Quetelet's rings, on, 826. 



Radiation, on the production of, by 

 electron bombardment in helium, 

 746. 



Radium C, on the alpha particles 

 from, 538. 



emanation, on the excitation of 



gamma radiation by alpha par- 

 ticles from, 904. 



Raman (Prof. C. Y.) on the colours 

 of mixed plates, 679 ; on Quete- 

 let's rings, 826. 



Random flights, on the problem of, 

 432. 



Rankine (Prof. A. O.) on the vis- 

 cosity and molecular dimensions 

 of gaseous ammonia, phosphine, 

 and arsine, 601 ; of sulphuretted 

 hydrogen, methane, and cvanogen, 

 615. 



Rao (K.) on the colours of mixed 

 plates, 679. 



Reinforced thin-plate beam, on the 

 strength of the, 281. 



Relativity, on the Lorentz trans- 

 formation in, 249 ; on units and 

 the theory of, 431 ; on the forms 

 of planetary orbits on the theory 

 of, 511 ; on the equation of motion 

 in the restricted principle of, 794 ; 

 of field and matter, on the, 800 ; 

 on the postulates and conclusions 

 of the theory of, 841, 



