[ 843 ] 



INDEX to VOL. XXVIII 



Adams (Prof, e. p.) on the 



Corbino effect, 692. 



Andrade (Dr. E. N. da C.) on the 

 spectrum of the penetrating- 

 gamma rays from radium B and 

 radium C/263. 



Actinium, on the distribution of the 

 active deposit of, 76] . 



C, on the transformations of, 818. 



Air, on the resistance of the, to 

 falling spheres, 728. 



Alpha particles, on the mass and 

 velocities of the, from radioactive 

 substances, 552. 



Aluminium cathode, on the dis- 

 integration of the, 347. 



Amsler plauimeter, on the slip- 

 curves of an, 142. 



Atomic numbers, on ordinals and, 

 630. 



structure and the spectrum of 



helium, on, 90. 



Bahr (Dr. Eva von) on the quantum 

 theory and the rotation-energy of 

 molecules, 71. 



Bailey (E. B.) on the Ballachulish 

 fold near the head of Loch Creran. 

 760. 



Beta rays, on the magnetic spectrum 

 of the, excited in metals by soft 

 X rays, 277 ; on the spectrum of 

 the, excited by gamma rays, 281 ; 

 on the connexion between the 

 spectra of the, and gamma rays, 

 305 ; on the number of ions pro- 

 duced by the, from radium, 327. 



Birilar properties of twisted strips, 

 on the, 778. 



Blood, on the form assumed by the 

 red corpuscles of the, 064. 



Boltzmann's equipartition hypothe- 

 sis, on the inapplicability of, to 

 gases in a state of change of 

 internal energy, 748. 



Books, new : Soddy's The Chemistry 

 of the Badioelements, 164 ; 

 Hughes's Photoelectricity, 416. 



Bragg (Prof. W. H.) on the absorp- 

 tion coefficients of X rays, 626. 



Bragg (W. L.) on the crystalline 

 structure of copper, 355. 



Broek (Dr. A. van den) on ordinals 

 and atomic numbers, 630. 



Brown (Prof. F. C.) on the seat of 

 light action in crystals of metallic 

 selenium, 497. 



Bruhat (Dr. G.) on the theories of 

 the rotational optical activity, 

 302. 



Buckley (J. C.) on the bifilar pro- 

 perties of twisted strips, 778. 



Burton (Dr. C. V.) on the possible 

 dependence of gravitational attrac- 

 tion on chemical composition, 252. 



Campbell (A.) on a method of com- 

 paring self-inductance and capa- 

 city, 842. 



Campbell (Prof. L. L.) on the dis- 

 integration of the aluminium 

 cathode, 347. 



Campbell (Dr. N.) on the ionization 

 of platinum by cathode rays, 286. 



Capillary force, on the equilibrium 

 of revolving liquid under, 161. 



surface, on the shape of the, 



inside a tube of small radius, 128. 



Carbon, on the spectra of, 117. 

 Cathode, on the action of a Wehnelt, 



244 ; on the disintegration of the 



aluminium, 347. 



rays, on the ionization of 



platinum by, 286 ; on the produc- 

 tion of soft Bbntgen radiation by 

 the impact of slow, 620. 



Chapman (A. K.) on the Corbino 

 effect, 692. 



Chrome steels, on the permanent 

 magnetism of, 738. 



Concentration cells in ionized gases, 

 on, 685. 



Conduction, on the mechanism of, 

 in thin metallic films, 467. 



Contact difference of potential of dis- 

 tilled metals, on the, 337. 



