﻿1004 



1 N D E X. 



Electric field, on the distribution of 

 the active deposit of radium in an, 

 714. 



■ resistance of xylol-alcohol mix- 

 tures, on the, 668. 



Electrical theory of matter, on a 

 deduction of the effects of uni'orm 

 translatory motion from the, 

 64. 



Electricity, on the effect of, on 

 streams of water drops, 148 ; on 

 the nature and velocity of migra- 

 tion of the carriers of, in names 

 containing metallic vapours, 865. 



Electrification of the atmosphere 

 and surface of the earth, on the, 

 852. 



Electrified particles, on ionization by 

 moving-, 449. 



Electrochemistry of radioactive 

 bodies, on the, 628. 



Electrometer, on the quadrant, 

 ^380. 



Electron theory of contact electro- 

 motive force, on the, 263. 



of matter, some appli- 

 cations of the, 594. 



of thermoelectric pheno- 

 mena, on the, 984. 



Electrons, on the method of deter- 

 mining- the motions of, 86; on 

 contact difference of potential and 

 the velocities of, 579 ; on the 

 collisions of, in metals, 595. 



Equations, on a kinematic method 

 of finding- the roots of, 892. 



Erikson (Prof. H. A.) on the recom- 

 bination of ions in carbon dioxide 

 and hydrogen, 747. 



Eumorfopoulos (N.) on the expansion 

 of mercury and of quartz, 653. 



Eve (Dr. A. S.) on the absorption of 

 Rontgen rays in air, 683. 



Expansion, on a relation between 

 coefficients of, and critical tem- 

 peratures, 657. 



Fajans (Dr. K.) on the growth of 

 radium C from radium 13, 292. 



Fergusou (A.), photographic mea- 

 surements of pendent drops, 417. 



Ferromagnetic elements, on the mag- 

 netic temperature coefficients of 

 the, 36. 



Filon (Prof. L. N. G.) on the in- 

 vestigation of stresses in a rect- 

 angular bar by means of polarized 

 liffht, 1. 



FitzGerald Lorentz contraction, on 

 the, 86. 



Flames, on the nature and velocity 

 of migration of the carriers of 

 electricity in, 865. 



Fletcher (A. L.) on the radium 

 content of secondary rocks, 279. 



Fresnel's laws of reflexion, on de- 

 partures from, 431. 



Gamma radiation from radium B, 

 on, 302. 



Gas molecules, on selective reflexion, 

 scattering and absorption by reso- 

 nating, 689. 



Gaseous jets, on the instabilitv of", 

 368. 



mixtures, on ionization in, by 



Rontgen radiation, 317. 



Gases, on the role played by, in the 

 emission of positive thermions 

 from salts, 139 ; on opalescence 

 of, in the critical state, 165; on 

 a method of investigating the 

 transpiration of, through tubes, 

 250. 



Geiger (Dr. H.) on the ranges of 

 the a particles from uranium, 

 439. 



Gill (E. W. B.) on the variation with 

 distance of the ionization produced 

 by Rontgen rays, 114 ; on ioni- 

 zation by collision in helium, 

 837. 



Gratings, on the aberration of echelon, 

 25 ; on diffraction with controlled 

 groove form, 310. 



Harmonic motions, on the com- 

 position of two simple, 977. 



Helium, on ionization by collision 

 in, 837. 



He use (W.) on the thermal expan- 

 sion of mercury, 412. 



Hevesy (Dr. G. v.) on the electro- 

 chemistry of radioactive bodies, 

 628. 



Hudson (Miss H. P.) on the trisection 

 of an angle, 860. 



Huntington (Prof. E. V.) on a new 

 approach to the theory of rela- 

 tivity, 494. 



Hydrogen, on the charges of therm- 

 ions produced in, 173 ; on the re- 

 combination of ions in, 747. 



Induction, on unipolar, 937. 



Interferometrv, on the rectification 

 of the spectrum in relation to the 

 shift of ellipses in, 942. 



