﻿REPORT 
  OF 
  THE 
  SECRETARY. 
  107 
  

  

  labors 
  seemed 
  quite 
  justified 
  by 
  their 
  probable 
  outcome. 
  Accord- 
  

   ingly, 
  in 
  a 
  report 
  to 
  the 
  American 
  representatives 
  of 
  the 
  Interna- 
  

   tional 
  Astronomical 
  Union 
  he 
  wrote 
  as 
  follows 
  : 
  

  

  It 
  is 
  the 
  intention 
  of 
  the 
  Smithsonian 
  Institution 
  to 
  continue 
  daily 
  observa- 
  

   tions 
  at 
  Mount 
  Harqua 
  Hala 
  and 
  Montezuma 
  certainly 
  until 
  July, 
  1923, 
  at 
  

   which 
  time 
  it 
  is 
  proposed 
  to 
  consider 
  the 
  state 
  of 
  the 
  work 
  and 
  the 
  results 
  

   reached 
  with 
  a 
  view 
  to 
  deciding 
  whether 
  it 
  is 
  worth 
  while 
  to 
  continue 
  daily 
  

   observations 
  of 
  the 
  variability 
  of 
  the 
  sun 
  indefinitely 
  or 
  whether 
  the 
  useful- 
  

   ness 
  of 
  that 
  work 
  is 
  unequal 
  to 
  the 
  trouble 
  and 
  expense 
  involved. 
  

  

  An 
  expression 
  of 
  opinion 
  on 
  the 
  part 
  of 
  those 
  interested 
  in 
  the 
  subject 
  would 
  

   be 
  of 
  great 
  value 
  to 
  the 
  Smithsonian 
  Institution 
  in 
  making 
  this 
  decision. 
  

  

  In 
  their 
  meeting 
  at 
  Washington, 
  April 
  3 
  and 
  4, 
  1922, 
  the 
  assembled 
  

   American 
  representatives, 
  including 
  meteorologists, 
  physicists, 
  and 
  

   astronomers, 
  passed 
  unanimously, 
  after 
  earnest 
  supporting 
  speeches, 
  

   the 
  following 
  resolution 
  : 
  

  

  Solar 
  radiation. 
  — 
  Moved 
  : 
  That 
  it 
  is 
  the 
  sense 
  of 
  the 
  American 
  section 
  of 
  

   the 
  International 
  Astronomical 
  Union 
  that 
  the 
  continuation 
  of 
  the 
  solar- 
  

   radiation 
  work 
  under 
  the 
  auspices 
  of 
  the 
  Smithsonian 
  Institution 
  in 
  at 
  least 
  

   two 
  stations 
  is 
  highly 
  desirable, 
  both 
  from 
  an 
  astronomical 
  and 
  a 
  meteorological 
  

   point 
  of 
  view. 
  Adopted. 
  

  

  Later, 
  in 
  the 
  Congress 
  at 
  Rome, 
  May 
  2, 
  1922, 
  the 
  international 
  

   representatives 
  indorsed 
  this 
  opinion 
  with 
  equal 
  unanimity 
  and 
  

   earnestness, 
  passing 
  the 
  following 
  resolution 
  : 
  

  

  The 
  section 
  of 
  meteorology 
  of 
  the 
  International 
  Geodetic 
  and 
  Geophysical 
  

   Union 
  records 
  its 
  appreciation 
  of 
  the 
  excellent 
  work 
  done 
  by 
  the 
  Astrophysical 
  

   Observatory 
  of 
  the 
  Smithsonian 
  Institution 
  of 
  Washington 
  in 
  determining 
  with 
  

   a 
  high 
  degree 
  of 
  accuracy 
  the 
  intensity 
  of 
  solar 
  radiation 
  outside 
  the 
  earth's 
  

   atmosphere. 
  It 
  is 
  of 
  the 
  opinion 
  that 
  the 
  daily 
  values 
  now 
  being 
  obtained 
  

   at 
  Mount 
  Montezuma, 
  Chile, 
  and 
  Mount 
  Harqua 
  Hala, 
  Ariz., 
  will 
  prove 
  of 
  

   great 
  value 
  in 
  the 
  solution 
  of 
  certain 
  meteorological 
  problems. 
  It 
  therefore 
  

   expresses 
  the 
  hope 
  that 
  these 
  determinations 
  may 
  be 
  continued 
  for 
  a 
  consider- 
  

   able 
  period 
  of 
  years. 
  

  

  PROPOSED 
  SOLAR 
  RADIATION 
  STATIONS. 
  

  

  In 
  view 
  of 
  these 
  impartial 
  expert 
  opinions, 
  it 
  is 
  a 
  pleasure 
  to 
  add 
  

   that 
  Mr. 
  John 
  A. 
  Roebling 
  has 
  made 
  it 
  possible 
  to 
  assure 
  the 
  con- 
  

   tinuation 
  of 
  the 
  solar-constant 
  stations 
  at 
  Harqua 
  Hala 
  and 
  Monte- 
  

   zuma 
  until 
  July, 
  1925. 
  By 
  that 
  time 
  sufficient 
  data 
  will 
  doubtless 
  

   be 
  secured 
  to 
  prove 
  whether 
  they 
  ought 
  to 
  be 
  continued 
  longer. 
  

  

  A 
  movement 
  is 
  being 
  made 
  in 
  Australia, 
  led 
  by 
  Rev. 
  E. 
  F. 
  Pigot, 
  

   of 
  Riverview 
  College, 
  to 
  provide 
  a 
  solar-constant 
  observing 
  station 
  

   similar 
  to 
  those 
  maintained 
  by 
  the 
  Smithsonian 
  Institution. 
  Funds 
  

   have 
  been 
  raised 
  there, 
  and 
  a 
  portion 
  of 
  the 
  apparatus 
  has 
  been 
  

   purchased 
  from 
  the 
  Institution. 
  Also 
  the 
  Meteorological 
  Service 
  

   of 
  Argentina 
  is 
  proposing 
  to 
  equip 
  its 
  station 
  at 
  La 
  Quiaca 
  for 
  

   similar 
  observations, 
  in 
  order 
  the 
  more 
  directly 
  to 
  support 
  the 
  regu- 
  

  

  