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  Scientific 
  Intelligence. 
  

  

  ing 
  its 
  efforts 
  successful 
  At 
  the 
  same 
  time, 
  it 
  is 
  intended 
  

  

  that 
  the 
  journal 
  shall 
  be 
  much 
  more 
  than 
  a 
  medium 
  for 
  the 
  popu- 
  

   larization 
  of 
  science. 
  Underlying 
  the 
  process 
  of 
  specialization 
  

   which 
  is 
  so 
  prominent 
  a 
  feature 
  of 
  all 
  the 
  knowledge 
  of 
  our 
  time 
  

   there 
  is 
  now 
  to 
  be 
  seen 
  a 
  tendency 
  toward 
  unification, 
  a 
  develop- 
  

   ment 
  of 
  principles 
  which 
  connect 
  a 
  constantly 
  increasing 
  number 
  

   of 
  special 
  branches. 
  The 
  meeting 
  of 
  all 
  students 
  of 
  nature 
  in 
  a 
  

   single 
  field 
  thus 
  becomes 
  more 
  and 
  more 
  feasible, 
  and 
  in 
  promot- 
  

   ing 
  intercourse 
  among 
  all 
  such 
  students 
  Science 
  hopes 
  to 
  find 
  a 
  

   field 
  for 
  its 
  energies, 
  in 
  which 
  it 
  may 
  invite 
  the 
  support 
  of 
  all 
  

   who 
  sympathize 
  with 
  its 
  aim." 
  

  

  2. 
  The 
  Astfophysical 
  Journal: 
  An 
  International 
  Review 
  of 
  

   Spectroscopy 
  and 
  Astronomical 
  Physics. 
  Volume 
  I, 
  Number 
  1, 
  

   100 
  pp. 
  January, 
  1895. 
  Chicago 
  (The 
  University 
  of 
  Chicago 
  Press.) 
  

   — 
  This 
  Journal, 
  which 
  is 
  essentially 
  a 
  continuation 
  in 
  a 
  new 
  form 
  of 
  

   Astronomy 
  and 
  Astro- 
  Physics, 
  has 
  for 
  its 
  editors-in 
  chief, 
  George 
  

   E. 
  Hale, 
  Director 
  of 
  the 
  Yerkes 
  Observatory 
  and 
  James 
  E. 
  Keeler, 
  

   of 
  the 
  Allegheny 
  Observatory. 
  The 
  assistant 
  editors, 
  are 
  J. 
  S. 
  

   Ames, 
  Johns 
  Hopkins 
  University, 
  W. 
  W. 
  Campbell, 
  Lick 
  Observa- 
  

   tory, 
  Henry 
  Crew, 
  Northwestern 
  University, 
  E. 
  B. 
  Frost, 
  Dart- 
  

   mouth 
  College, 
  F. 
  L. 
  O. 
  Wadsworth, 
  University 
  of 
  Chicago. 
  

   There 
  are 
  also 
  ten 
  associate 
  editors, 
  leading 
  men 
  in 
  this 
  depart- 
  

   ment 
  of 
  Science, 
  and 
  equally 
  divided 
  between 
  this 
  country 
  and 
  

   abroad. 
  The 
  first 
  number 
  now 
  issued 
  contains 
  a 
  number 
  of 
  

   valuable 
  articles 
  by 
  Professors 
  Michelson, 
  Pickering, 
  Rowland 
  

   and 
  others. 
  The 
  article 
  by 
  Rowland 
  gives 
  a 
  preliminary 
  table 
  of 
  

   Solar 
  Spectrum 
  wave-lengths 
  from 
  3722-071 
  to 
  3911-444. 
  Minor 
  

   contributions 
  and 
  notes 
  fill 
  pages 
  80-87, 
  and 
  reviews 
  with 
  a 
  list 
  

   of 
  recent 
  publications, 
  pp. 
  88-99. 
  

  

  That 
  this 
  journal 
  will 
  prove 
  a 
  great 
  aid 
  to 
  scientific 
  research 
  in 
  

   the 
  department 
  of 
  Radiant 
  Energy 
  to 
  which 
  it 
  is 
  devoted 
  is 
  too 
  

   obvious 
  to 
  require 
  comment. 
  It 
  should 
  be 
  generously 
  supported. 
  

   The 
  Astrophysical 
  Journal 
  is 
  to 
  be 
  issued 
  monthly 
  (except 
  in 
  

   July 
  and 
  September) 
  and 
  the 
  annual 
  subscription 
  is 
  four 
  dollars. 
  

  

  3. 
  Cloudland 
  : 
  A 
  study 
  on 
  the 
  structure 
  and 
  characters 
  of 
  

   Clouds 
  ; 
  by 
  Rev. 
  W. 
  Clement 
  Ley. 
  208 
  pp. 
  8vo. 
  London, 
  1894 
  

   (Edward 
  Stanford). 
  — 
  This 
  is 
  a 
  popular 
  discussion 
  of 
  the 
  subject 
  

   of 
  clouds, 
  presented 
  in 
  attractive 
  form 
  and 
  with 
  an 
  abundance 
  of 
  

   excellent 
  illustrations, 
  including 
  a 
  number 
  of 
  colored 
  plates. 
  It 
  

   would 
  be 
  difficult 
  to 
  find 
  elsewhere 
  so 
  complete 
  and 
  systematic 
  a 
  

   description 
  and 
  representation 
  of 
  the 
  different 
  types 
  of 
  clouds 
  and 
  

   it 
  will 
  doubtless 
  be 
  of 
  material 
  aid 
  to 
  the 
  individual 
  observer. 
  

   The 
  latter 
  portion 
  of 
  the 
  work 
  discusses 
  the 
  theory 
  of 
  atmospheric 
  

   currents, 
  prevailing 
  winds, 
  cyclones 
  and 
  anti-cyclones. 
  In 
  the 
  ill- 
  

   ness 
  of 
  the 
  author, 
  which 
  has 
  prevented 
  the 
  completion 
  of 
  his 
  

   work, 
  the 
  volume 
  has 
  been 
  edited 
  by 
  Mr. 
  C. 
  H. 
  Ley. 
  

  

  OBITUARY. 
  

  

  Frederik 
  Johnstrup, 
  Professor 
  of 
  Mineralogy 
  at 
  Copenhagen, 
  

   died 
  in 
  December 
  1894, 
  at 
  the 
  age 
  of 
  seventy. 
  

  

  