﻿REPOBT 
  OF 
  THE 
  SECRETARY. 
  23 
  

  

  also 
  that 
  the 
  solar-energy 
  curve 
  was 
  traced 
  bolometrically 
  with 
  both 
  

   glass 
  and 
  rock-salt 
  prisms. 
  The 
  solar 
  cooking 
  apparatus 
  on 
  Mount 
  

   Wilson 
  referred 
  to 
  in 
  previous 
  reports 
  suffered 
  the 
  loss 
  of 
  the 
  cover 
  

   of 
  the 
  oil 
  reservoir 
  through 
  a 
  high 
  wind, 
  and 
  snow 
  having 
  gotten 
  

   in, 
  much 
  water 
  had 
  leaked 
  into 
  the 
  oil 
  reservoir. 
  It 
  proved 
  im- 
  

   possible 
  to 
  remedy 
  this 
  condition 
  soon 
  enough 
  to 
  undertake 
  the 
  

   proposed 
  new 
  experiments 
  before 
  the 
  expedition 
  returned 
  to 
  Wash- 
  

   ington 
  in 
  September. 
  

  

  In 
  order 
  to 
  get 
  the 
  opinions 
  of 
  competent 
  critics 
  as 
  to 
  the 
  value 
  

   of 
  the 
  Smithsonian 
  solar 
  radiation 
  measurements, 
  the 
  director 
  wrote 
  

   to 
  the 
  American 
  representatives 
  of 
  the 
  International 
  Astronomical 
  

   Union 
  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 
  usefulness 
  

   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. 
  

  

  At 
  a 
  meeting 
  in 
  Washington 
  the 
  American 
  representatives 
  unani- 
  

   mously 
  indorsed 
  the 
  work 
  of 
  the 
  observatory, 
  and 
  later 
  at 
  Rome 
  

   the 
  international 
  representatives 
  passed 
  a 
  resolution 
  expressing 
  the 
  

   same 
  opinion. 
  In 
  view 
  of 
  these 
  impartial 
  indorsements 
  of 
  the 
  

   work, 
  it 
  is 
  a 
  pleasure 
  to 
  announce 
  that 
  Mr. 
  John 
  A. 
  Roebling 
  has 
  

   made 
  it 
  possible 
  to 
  assure 
  the 
  continuation 
  of 
  the 
  solar 
  constant 
  

   stations 
  at 
  Harqua 
  Hala 
  and 
  Montezuma 
  until 
  July, 
  1925. 
  By 
  that 
  

   time 
  it 
  will 
  doubtless 
  be 
  evident 
  from 
  the 
  data 
  obtained 
  whether 
  they 
  

   should 
  be 
  continued 
  longer. 
  

  

  A 
  movement 
  is 
  under 
  way 
  in 
  Australia 
  to 
  establish 
  a 
  solar 
  observ- 
  

   ing 
  station 
  there 
  similar 
  to 
  the 
  Smithsonian 
  stations. 
  The 
  Meteoro- 
  

   logical 
  Service 
  of 
  Argentina 
  is 
  also 
  proposing 
  to 
  equip 
  its 
  station 
  

   at 
  La 
  Quiaca 
  for 
  solar 
  observations, 
  and 
  it 
  is 
  expected 
  that 
  during 
  

   the 
  next 
  fiscal 
  year 
  two 
  sets 
  of 
  solar 
  constant 
  apparatus 
  will 
  be 
  pre- 
  

   pared 
  for 
  the 
  Australian 
  and 
  Argentine 
  stations. 
  

  

  INTERNATIONAL 
  CATALOGUE 
  OF 
  SCIENTIFIC 
  

   LITERATURE. 
  

  

  In 
  the 
  statement 
  last 
  year 
  regarding 
  the 
  International 
  Catalogue 
  

   of 
  Scientific 
  Literature 
  reference 
  was 
  made 
  to 
  the 
  very 
  apparent 
  

   need 
  of 
  cooperation 
  between 
  organizations 
  publishing 
  abstracts 
  to 
  

   scientific 
  literature 
  and 
  the 
  International 
  Catalogue. 
  This 
  year 
  in 
  

   the 
  annual 
  report 
  of 
  the 
  United 
  States 
  regional 
  bureau 
  suggestions 
  

   are 
  made 
  for 
  an 
  even 
  greater 
  consolidation 
  of 
  bibliographical 
  inter-- 
  

  

  