846 



INDEX. 



Metallic films, on the electrical re- 

 sistance of thin, 467. 



Metals, on the magnetic spectrum of 

 the beta rays excited in, by soft 

 X rays, 277 j on the contact differ- 

 ence of potential of distilled, 

 337. 



Moir (Dr. M. B.) on permanent 

 magnetism of certain chrome and 

 tungsten steels, 738. 



Molecular action, on the mechanism 

 of, 798 



volumes, on the theory of, 439 ; 



on the unit-stere theory of, 600, 

 607. 



Molecules, on the quantum-theory 

 and the rotation-energy of, 71. 



Moon's longitude, on fluctuations of 

 the, 252. 



Moseley (H. G. J.) on the number of 

 ions produced by the beta and 

 gamma radiations from radium, 

 327. 



Newman (F. H.) on the ionization 

 potential of mercury vapour, 753. 



Nicholson (Prof. J. W.) on atomic 

 structure and the spectrum of 

 helium, 90. 



Nickel, on the X-ray spectrum of, 

 274. 



Nitrogen, on an oxidizable variety 



of, 4i2. ; 



Optical activity, on rotational, 302, 

 756. 



Ordinals and atomic numbers, on, 

 630. 



Pal (G.) on the radioactivity of the 

 rocks of the Kolar goldfields, 44. 



Peirce (S. E.) on the absorption co- 

 efficients of X rays, 626. 



Penny (F. W.) on the Vredefort 

 granite, 759. 



Periodic table, on high-frequency 

 spectra and the, 139. 



Photometer, on the theory of the 

 flicker, 708. 



Planck (Prof. M.) on new paths of 

 physical knowledge, 60. 



Planimeter, on the slip- curves of an 

 Amsler, 142. 



Platinum, on the positive ionization 

 from heated, 170 ; on the ion- 

 ization of, by cathode rays, 286. 



Points, on the discharge of elec- 

 tricity from, 234. 



Polarizing prisms for the ultraviolet, 



Potentials, on the, required to main- 

 tain currents between coaxial 

 cylinders, 83 ; on the contact 

 difference of, of distilled metals, 

 337. 

 Proudman (J.) on the motion of 

 viscous liquids in channels, 30, 

 760. 



Quantum-theory and the rotation- 

 energy of molecules, on the, 71. 



Radiant energy, on the statistical 

 relations of, 648. 



Radiation, on the energy distribution 

 for natural, 794. 



Radioactivity of the rocks of the 

 Kolar goldfields, on the, 44. 



Radium, on the number of ions 

 produced by the beta and gamma 

 radiations from, 327; on the active 

 deposit of, 417 ; on the distri- 

 bution of the active deposit of, in 

 electric fields, 539. 



B and C, on the spectrum of 



the penetrating gamma rays from, 

 263. 



constants, on the International 



standard, 320. 



Rawlinson (W. F.) on the X-ray 

 spectrum of nickel, 274; on the 

 magnetic spectrum of the beta 

 rays excited in metals by soft X 

 rays, 277 ; on the spectrum of the 

 beta rays excited by gamma rays, 

 281. 



Rayleigh (Lord 1 ) on the equilibrium 

 of revolving liquid under capillary 

 force, 161; on the stability of 

 viscous fluid motion, 609. 



Red corpuscles of the blood, on the 

 form assumed by the, 664. 



Relativity, on the theory of, 572, 

 583. 



Rice (J.) on the form assumed by 

 the red corpuscles of the blood, 

 664. 



Richardson (L.) on the geology of 

 the Doulting-Milborne-Port dis- 

 trict, 841. 



Richardson (Prof. O. W.) on the 

 distribution of the molecules of a 

 gas in a field of force, 633. 



Richardson (S. S.) on polarizing 

 prisms for the ultraviolet, 256. 



Robinson (H.) on the magnetic 

 spectrum of the beta rays excited 

 in metals by soft X rays, 277 ; on 

 the spectrum of the beta rays 



