﻿9S4 
  

  

  INDEX. 
  

  

  Spark 
  phenomena, 
  on 
  short, 
  340. 
  

  

  potentials, 
  on 
  minimum, 
  456. 
  

  

  Spectrum 
  of 
  the 
  radium 
  emanation, 
  

   on 
  ill.. 
  313: 
  extension 
  of 
  the 
  

   principal 
  series 
  of 
  the 
  sodium. 
  

  

  y4o. 
  

  

  Spicei 
  (Rev. 
  E. 
  C.) 
  on 
  solution- 
  

   valleys 
  in 
  the 
  G-lyme 
  area. 
  7".*'). 
  

  

  Steel, 
  on 
  the 
  results 
  of 
  tests 
  of, 
  

   under 
  comhined 
  stresses, 
  720. 
  

  

  Stephenson 
  (A.) 
  on 
  periodic 
  non- 
  

   generating 
  force 
  of 
  high 
  frequency, 
  

   616. 
  

  

  Stoney 
  (Dr. 
  G-. 
  J.) 
  on 
  telescopic 
  

   vision, 
  318, 
  796, 
  950. 
  

  

  suits 
  oi 
  tests 
  of 
  materials 
  

   under 
  combined, 
  720. 
  

  

  Strings, 
  on 
  the 
  partial 
  ton 
  

   stretched, 
  oi' 
  variable 
  density, 
  

   235. 
  

  

  Sutherland 
  (W.) 
  on 
  another 
  method 
  

   of 
  measuring 
  large 
  molecular 
  

   masses, 
  497. 
  

  

  Telegraphy, 
  on 
  b 
  directive 
  Bystem 
  

   of 
  wireless, 
  •'••'i 
  v 
  . 
  

  

  Telephones, 
  notes 
  on, 
  -4-1. 
  

  

  Telephonic 
  m 
  lasurements, 
  on 
  the 
  

   production 
  of 
  alternating 
  currents 
  

   for, 
  480. 
  

  

  Telescopic 
  vision, 
  on, 
  318, 
  796, 
  950. 
  

  

  Thermoelectric 
  forces, 
  on 
  the 
  cor- 
  

   puscular 
  theory 
  of 
  th 
  >, 
  76*7. 
  

  

  Thomson 
  i 
  Prof. 
  J. 
  J. 
  I 
  on 
  positive 
  

   rays, 
  657. 
  

  

  Thorium, 
  on 
  the 
  condensation 
  of 
  the 
  

   emanation 
  from, 
  1-1 
  ; 
  on 
  the 
  rela- 
  

   tive 
  activity 
  of 
  the 
  emanation 
  and 
  

   the 
  active 
  deposit 
  from, 
  291. 
  

  

  Tool 
  (A. 
  Q.) 
  on 
  the 
  optical 
  proper- 
  

   ties 
  of 
  films 
  i 
  f 
  magnetic 
  metals. 
  

   833. 
  

  

  Tosi 
  (A.) 
  on 
  a 
  directive 
  system 
  of 
  

   wire! 
  l 
  ,n 
  . 
  v 
  ; 
  638. 
  

  

  Transformers, 
  on 
  the 
  use 
  of, 
  with 
  

   measuring 
  instruments, 
  142. 
  

  

  Trowbridge 
  (Prof. 
  J.) 
  on 
  positive 
  

   rays. 
  697. 
  

  

  Tyndall 
  (A.M.) 
  on 
  the- 
  changes 
  of 
  

   pressure 
  which 
  accompany 
  point 
  

   discharge 
  through 
  hydrogen, 
  24. 
  

  

  Unit-stere 
  theory, 
  on 
  the, 
  UO. 
  

  

  Uranium, 
  on 
  the 
  relation 
  between 
  

   radium 
  and, 
  632. 
  

  

  Vacuum-tube 
  model 
  for 
  demons- 
  

   trating- 
  the 
  propagation 
  of 
  electric 
  

   currents 
  in 
  cables, 
  on 
  a, 
  718. 
  

  

  Vapour-pressure 
  of 
  mercury, 
  on 
  the, 
  

   789. 
  

  

  Vaughan 
  (Lv. 
  A.) 
  on 
  the 
  carboni- 
  

   ferous 
  rocks 
  at 
  Loughahinny, 
  494. 
  

  

  Vegard 
  (1,.) 
  on 
  osmosis 
  and 
  osmotic 
  

   pressure. 
  247, 
  396. 
  

  

  Very 
  (F. 
  W.) 
  on 
  the 
  greenhouse 
  

   theory 
  and 
  planetary 
  temperatures, 
  

   462. 
  ' 
  

  

  Vibrations, 
  on 
  the 
  maintenance 
  of, 
  

   by 
  impart 
  of 
  water 
  drops, 
  238. 
  

  

  Visibility 
  curves, 
  on 
  an 
  improve- 
  

   ment 
  in 
  the 
  method 
  of 
  deter- 
  

   mining, 
  395. 
  

  

  Water, 
  on 
  the 
  action 
  of 
  the 
  radium 
  

   emanation 
  upon; 
  812. 
  

  

  Water 
  vapour, 
  on 
  the 
  decomposition 
  

   of, 
  by 
  electric 
  sparks, 
  92s 
  

  

  Watson 
  (II. 
  15.) 
  on 
  some 
  properties 
  

   of 
  artists' 
  colours. 
  725. 
  

  

  Wilde 
  I 
  Dr. 
  I 
  l.i 
  mi 
  the 
  atomic 
  Weight 
  

   of 
  radium, 
  824. 
  

  

  Wilson 
  (Prof.E. 
  1>.) 
  on 
  tin.' 
  principle 
  

   of 
  relativity, 
  411). 
  

  

  Wireless 
  telegraphy, 
  on 
  a 
  directive 
  

  

  s\.-te]|l 
  of, 
  638. 
  

  

  Wood 
  ( 
  Prof. 
  R. 
  W.) 
  on 
  the 
  emission 
  

   of 
  polarized 
  light 
  by 
  iluorescent 
  

   gases, 
  J' 
  K 
  4 
  : 
  on 
  a 
  method 
  of 
  show- 
  

   ing 
  fluorescent 
  absorption, 
  5)40; 
  

   extension 
  of 
  the 
  principal 
  series 
  

   of 
  the 
  sodium 
  spectrum, 
  945. 
  

  

  Wright 
  (C. 
  S.) 
  on 
  an 
  improvement 
  

   in 
  the 
  method 
  of 
  determining 
  

   visibility 
  curve,-, 
  395. 
  

  

  Xenotime, 
  on 
  the 
  dispersion 
  of 
  mag- 
  

   netic 
  rotatory 
  power 
  in 
  the 
  neigh- 
  

   bourhood 
  of 
  absorption-bands 
  in, 
  

   153. 
  

  

  Young- 
  (Dr. 
  A. 
  P.) 
  on 
  the 
  strati- 
  

   graphy 
  of 
  the 
  Tarnthal 
  mass, 
  704. 
  

  

  Young 
  (Prof. 
  S.) 
  on 
  ortho 
  baric 
  

   volumes 
  in 
  relation 
  to 
  pressure 
  

   and 
  temperature, 
  222. 
  

  

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  SIXTEENTH 
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