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  ANNUAL 
  REPORT 
  SMITHSONIAN 
  INSTITUTION, 
  1922. 
  

  

  may 
  be 
  benefited. 
  By 
  combined 
  effort 
  much 
  duplication 
  of 
  labor 
  

   and 
  cost 
  would 
  be 
  saved, 
  and 
  most 
  important 
  of 
  all, 
  bibliographers, 
  

   students, 
  and 
  industrial 
  agencies 
  would 
  be 
  furnished 
  with 
  prompt 
  

   and 
  authoritative 
  information 
  regarding 
  the 
  literature 
  of 
  the 
  sub- 
  

   jects 
  relating 
  to 
  their 
  several 
  interests. 
  

   Very 
  respectfully 
  yours, 
  

  

  Leonard 
  C. 
  Gunnell, 
  

  

  Assistant 
  in 
  Charge. 
  

   Dr. 
  Charles 
  D. 
  Walcott, 
  

  

  Secretary, 
  Smithsonian 
  Institution. 
  

  

  