[ 868 ] 



INDEX to VOL. XVII 



.A.CIDS, on the action between 

 metals and, 833. 



Actinium, on the diffusion of the 

 emanation of, 412. 



Adsorption and Gibbs's theory, on, 

 466. 



iEther, on elastic solid, 553. 



^Etherial stress and momentum, on, 

 641. 



Air, on variations in the conduc- 

 tivity of, enclosed in metallic 

 receivers, 295 ; on the resistance 

 to the flow of, through a pipe, 

 389. 



Air-blast, on the effect of an, on the 

 spark discharge of a condenser, 

 677. 



Albumin, on surface separation from 

 solutions of, 560. 



Allan (Dr. G. E.) on the magnetism 

 of basalt, 572. 



Alpha particle, on the nature of the, 

 281. 



Alternate current circuits, on the use 

 of the potentiometer on, 402. 



Aluminium, on the absorption and 

 reflexion of /3 rays by, 140. 



Apparatus for applying bending and 

 twisting moments simultaneously, 

 on an, 496. 



Arc, on the relighting of the carbon, 

 449. 



Aro-on, on the molecular constants 

 of, 795. 



Atmosphere, on radioactive pro- 

 ducts present in the, 321. 



Atoms, on the size of, 808. 



Attraction, on the electric origin of 

 molecular, 657. 



Bakker (Dr. G.) on the theory of 

 surface forces, 333. 



Bar magnets, on the self-demag- 

 netizing factor of, 729. 



Barkla (Dr. C.G.) on the absorption 

 of Rontgen rays, 739. 



Barnard (R. J. A.) on the appUpa- 

 tion of the electron the^Sy to 

 induction currents, 706.., 



Basalt, on the magnetism of, 572. 



Beadnell (H. J. LI.) on the Nubian 

 Sandstone, 227. 



Bending and twisting moments, on 

 a machine for applying, simul- 

 taneously, 496. 



Ber and bei functions, on methods of 

 computing, 524. 



Berkeley (the Earl of) on the 

 osmotic theory of solutions, 

 598. 



Bessel's functions, on the coeffi- 

 cients in certain series of, 329. 



Beta rays, on the absorption of the 

 different types of, 126 ; on the 

 number and absorption by matter 

 of the, emitted by radium, 171 ; 

 on the absorption of, by liquids, 

 180. 



Books, new : — Bulletin of the Bureau 

 of Standards, 226 ; Worthing- 

 ton's Study of Splashes, 331 ; 

 Annuaire du Bureau des Longi- 

 tudes, 448 ; Crew's General 

 Physics, 654; Senter's Outlines of 

 Physical Chemistry, 768 ; United 

 States Magnetic Tables and Mag- 

 netic Charts for 1905, 769 ; Kohn- 

 stamm's Lehrbuch der Thermo- 

 dynamik, 864 ; Yoigt's Magneto- 

 und Electrooptik, 865 ; Norwegian 

 Aurora Polaris Expedition 1902- 

 1903, Vol. I., 866. 



Boyle (R. W.) on the absorption 

 of the radioactive emanations by 

 charcoal, 374. 



Bragg (Prof. W. H.) on a want of 

 symmetry shown by secondary 

 X-rays, 855. 



Brown (F. C.) on the kinetic energy 

 of the positive ions emitted by hot 

 platinum, 355. 



