1012 



INDEX. 



Elster and Geitel electrical du-sipa- 

 ti< q apparatus, on results obtained 

 ^ at Kew Observatory with an, 47-"). 

 Emission-spectra of aromatic com- 

 pounds, on the. B19. 



-y, on the flow of, in an inter- 

 ference field, 290. 

 Ether, on the critical phenomena of, 



793. 

 Ewing (Prof. J. A.) on magnetic 



hye 05. 



Evans (K. J.) on the deflexion by a 

 magnetic field of radium ]> on 

 ^ recoil from radium A. 882. 



a Hi", as an electrical organ, 



: on a means of measuring the 



apparent diameter of the pupil of 



the, in very feeble light, 9o6. 



Fields . .»n the intensity of 



periodic, v l I. 

 Finlaj tf.) on ore-deposition 



in the lead and rinc 

 Britain, 5 18. 

 Fletcherl A. L.) on the radioactivity 

 of il).> rocks i»f the Transandin'e 

 tunnel, • 

 ■ ; D. C. H.) on primary and 



ndary y rays, 95?1 . 

 ' Galvanometer for alternate currenl 



circuits, on a, 

 Gamm . d the hom< | 



the, 248, 383 ; on the corpuscular 

 hypothesis oft a j rimary 



and secondary, 921 . 

 Garretl \. E. on positive electri- 

 ficati n due to heating aluminium 

 ph< 573. 



Gas thermometer, on a constant 

 . 

 is, on the equation of con- 

 tinuity of the liquid and. states of 

 matter. I 

 Geiger (Dr. EL) on the number of 

 a particles emitted by uranium and 

 thorium and by uranium minerals, 

 691 ; on the probability variations 

 in the distribution of a particles, 

 698. 

 Geological Society, proceedings of 



the, 543, 790, 1007. 

 Geometry, on the relation between 



electromagnet-ism and, 623. 

 Gibsou (Prof. A. H.) on a formula 

 for the discharge over a broad- 

 crested weir, 95. 

 Gold, on the specific charge of the 

 emitted bv hot,550. 



Goldstein (Prof. E.) on threefold 

 emission-spectra of solid aromatic 

 compounds, (519. 



Grating, on the interference of raj 

 from a plane transparent, 45; a 

 hydrodvnamical illustration of the 

 transmission of aerial and electri- 

 cal waves by a, 303 ; on a method 

 of counting the rulings of a dif- 

 fraction, 714 ; on the echelette, 

 fur tlif infra-red, 770; on groove- 

 form and energy distribution of 

 diffraction, 886 ; on infra-red in- 

 vestigations w ith the echelette, 898. 



Grav (d. A.) on the heterogeneity 

 o( the 0rays iV.nu a thick layer of 

 radium K. 370. 



Greenhill (Sir G.) on pendulum 

 motion and spherical trigono- 

 metry, . 28. 



( rroove-form and energy distribution 

 of diffraction-gratings, on, 886. 



Elarrison (W. J.) on the stability of 



Superposed si reams of viscous 

 liquids, 493. 



Heat, on the convection of, from a 



body cooled by a stream of fluid, 



591. 

 Hot bodies, on the specific charge of 



the ions emitted by, 545. 

 Houstoun (Dr. R.A. | on the damping 



of long waves in a rectangular 



trough, 247. 

 Hulbirt ( E.R.) on the specific charge 



of the ions emitted by hot bodies, 



5 15. 

 Hydrogen, on the absorption of 



cathode particles bv, 32(1. 

 Hysteresis loops and Lissajous' 



ares, on, 417. 

 L.fra-red, on investigations in the, 



-with the echeletteT grating, 770, 



Interference of rays from a plane 

 transparent grating, on the, 45. 



field, on the flow of energy in 



an, 290. 



Interferometer, on an, 45. 



Ionization, on typical cases of, by 

 X-rays, 370 ; on the, produced by 

 the splashing of mercury, 464, 903. 



Ionizing processes at appoint dis- 

 charging in air, on the, 277. 



Ions, on the specific charge of the, 

 emitted by hot bodies, 545. 



Iron, on the specific charge of the 

 ions emitted by hot. 552. 



