840 
1  N  D  E  X. 
Uranium  compounds,  on  the  relation 
between  the  radioactivity  and  com- 
position of,  176. 
Valves,  on  oscillation,  for  rectifying 
high-frequency  currents,  659. 
Yeley  (V.  H.)  on  an  apparatus  for 
the  determination  of  the  dielectric 
constants  of  non  -  conducting 
liquids,  73. 
Vibrations,  on  electrical,  and  the 
constitution  of  tbe  atom,  117, 
292  ;  on  an  instrument  for  com- 
pounding, 127  ;  on  the  production 
of,  by  forces  of  relatively  long 
duration,  283 ;  on  the  lateral,  of 
loaded  and  unloaded  bars,  354  ;  on 
the  symmetrical,  of  conducting 
surfaces  of  revolution,  703. 
Walker  (J.)  on  Talbot's  lines,  531. 
Wave-lengths,  on  some  measure- 
ments of,  with  a  modified  appara- 
tus, 685. 
Waves,  on  deep  sea  ship-,  1 ;  on 
the  diffraction  of  short,  by  a  rigid 
sphere,  193  ;  on  the  range  of 
Stokes's  deep-water,  374. 
Wien  (Prof.  M.)  on  the  dielectric 
strain  along  the  lines  of  force,  607. 
Wilderman  (Dr.  M.)  on  an  improved 
type  of  chronograph,  393. 
Wilson  (Prof.  H.  A.)  on  the  elec- 
trical conductivity  of  flames  con- 
taining salt  vapours  for  alternating 
currents,  484  ;  on  the  velocities  of 
the  ions  of  alkali  salt  vapours  at 
high  temperatures,  790. 
Wire,  on  the  deflexions  caused  by  a 
break  in  an  overhead,  carried  on 
poles,  632. 
Wood  (Prof.  R.  W.)  on  fluorescence 
and  Lambert's  law,  782. 
Wiillner  (Prof.  A.)  on  the  dielectric 
strain  along:  the  lines  of  force, 
607. 
EXD  OF  THE  ELEVENTH  VOLUME. 
Printed  bv  Taylor  and  Francis,  Red  Lion  Court.  Fleet  Street. 
