848 



INDEX. 



Trechmann (C. T.) cm the Scandin- 

 avian drift of the Durham coast, 

 758. 



Tubes, on the collapse of short, by 

 external pressure, 51 ; on the 

 shape of the capillary surface in- 

 side, of small radius, 128. 



Tungsten steels, on permanent mag- 

 netism of, 738. 



Twisted strips, on the bifilar proper- 

 ties of, 778. 



Ultraviolet, on polarizing- prisms for 

 the, 256. 



Unit-stere theory, on the, 600, 607. 



Vanstone (E.) on the unit-stere 

 theory of molecular volume, 600. 



Vnrder (R. W.) on the transform- 

 ations of actinium C, 818. 



Viscous fluid motion, on the sta- 

 bility of, 609. 



liquids, on the motion of, in 



channels, 30, 760. 



Visual sensations caused by a mag- 

 netic field, on, 188. 



Walmsley (Lieut. H. P.) on the 

 distribution of the active deposit 

 of radium in electric fields, 539. 



Washington (Dr. H. S.) on the 

 composition of rookallite, 157. 



Watson (Prof. H. E.) on the radio- 

 activity of the rocks of the Kolar 

 goldfields, 44. 



Watts (Dr. W. M.) on the spectra 

 given by carbon and some of its 

 compounds, 117. 



Waves, on the reflexion of electro- 

 magnetic, at the surface of a 

 moving mirror, 508, 702, 822. 



Wehnelt cathode, on the action of 

 a, 244. 



Wellisch (Prof. E. M.), experiments 

 on the active deposit of radium, 

 417. 



Wilton (J. R.) on figures of equili- 

 brium of rotating fluid, 671 . 



Wood (A. B.) on the volatility of 

 thorium D, 808. 



X-rav spectrum of nickel, on the, 

 274. 



X rays, on the magnetic spectrum of 

 the beta rays excited in metals by 

 soft, 277 ; on the reflexion of, 

 from copper, 355; on the ab- 

 sorption coefficients of, 626. 



Zinc vapour, on the absorption 

 spectrum of, 360. 



END OF THE TWENTY-EIGHTH VOLUME. 



Printed by Taylor and Francis, Bed Lion Court, Fleet Street. 



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