INDEX. 



7S9 



Davison (Dr. C.) on the Swansea 

 earthquake of 190(5, 783; on the 

 Oehil earthquakes of 1900 to 1907, 

 787. 



Diffraction spectra, on a remarkable 

 case of, 60. 



Diffusion of gases as an irreversible 

 process, on, 122. 



Disks, on the scattering- of sound bv, 

 364. 



Dow (J. S.) on a cosine flicker 

 photometer, 614. 



Ear, on the sensitiveness of the, to 

 pitch, 596. 



Earth, on the figure of the, 482 ; on 

 the effect of day and night on the 

 temperature of the, 749 ; on the 

 constitution of the interior of the, 

 as revealed by earthquakes, 786. 



Elastic constants, on the change of, 

 by magnetization, 6o. 



Electric arc, observations on the, 

 126; on the Poulsen, 254. 



origin of the radiation from hot 



bodies, on the, 217. 



— — - oscillations, on determining the 

 frequencies of slow, 238 ; on the 

 Poulsen arc as a means of obtain- 

 ing continuous, 254 ; on the super- 

 position of, upon magnetization, 

 468. 



radiations, on the properties 



and natures of various, 429. 



Electricity, on rays of positive, 212, 

 295,359; on the relation between 

 the intensity of the ultra-violet 

 light falling on a zinc plate and 

 the quantity of, set free, 297 ; on 

 the discharge of, from hot bodies, 

 306 : on the production of statical, 

 bv the action of heat and light, 

 450. 



Electrodes, on a gas generated from 

 aluminium, 779. 



Electromagnetic mass of a moving 

 election, on the, 538. 



Electrometer, on a short-period, 

 238. 



Electrons, on the range of freedom 

 of, in metals, 312; on the electro- 

 magnetic mass of moving, 538. 



Eve (A. S.) on the amount of radium 

 in rocks in the neighbourhood of 

 Montreal, 231 ; on ionization hv 

 spraying, 382 ; on the amount of 

 radium emanation in the atmo- 

 sphere, 724. 



Phil. May. S. 6. Vol. 14. No. U 



-Fleming (Prof. J. A.) on the 

 Poulsen arc as a mean* of obtain- 

 ing continuous electrical oscilla- 

 tions, 254 ; on magnetic oscillators 

 as radiators in wireless telegraph v, 

 677. 



Galvanometer, on the measurement 

 of mutual inductance by a vibra- 

 tion-, 494. 



Gamma rays, on the secondary 

 cathode rays emitted \>y substances 

 exposed to, 618. 



Gas, on a, generated from aluminium 

 electrodes, 779. 



Gases, on diffusion of, as an irre- 

 versible process, 122 ; on the work 

 which may b3 gained during the 

 mixture of, 422 ; on condensation 

 nuclei produced by cooling, to low- 

 temperatures, 528 ; on the secon- 

 dary lldntgen radiation from, 653. 



Geological Society, proceedings of 

 the, 213, 555, 676, 785. 



Grating spectra, a simple treatment 

 of the secondary maxima of, 477. 



Griffith (I. O.) on the relation be- 

 tween the intensity of the ultra- 

 violet light falling on a zinc plate 

 and the quantity of electricity set 

 free, 297. 



Harmer (F. W.) on the origin of 

 canon-like valleys associated w r ith 

 lake - like areas of depression, 

 555. 



Heat, on the production of statical 

 electricity by the action of, 450. 



Hirsch (Dr. R. v.) on a gas generated 

 from aluminium electrodes, 779. 



Honda (K.) on the effect of stress on 

 magnetization and its relations to 

 the change of elastic constants by 

 magnetization, 6-5. 



Hot bodies, on the electrical origin 

 of the radiation from, 217 ; on the 

 discharge of electricity from, 306. 



Hughes (A. LI.) on condensation 

 nuclei produced by cooling gases 

 to low temperatures, 528. 



Hydrogen, on a natural relation 

 between the volumes of the atoms 

 in compounds and that of com- 

 bined, 324. 



Inductance, on the measurement of 

 mutual, by a vibration galvano- 

 meter, 494. 



Induction, on magnetic, in spheroids, 

 455. 



. Dec. 1907. 3 G 



