﻿REPORT 
  OF 
  THE 
  SECRETARY 
  XIII 
  

  

  ASTROPHYSICAL 
  OBSERVATORY 
  

  

  Director. 
  — 
  Charles 
  G. 
  Abbot. 
  

  

  Research 
  assistant. 
  — 
  Fredesiick 
  E. 
  Fowle, 
  Jr. 
  

  

  Research 
  assistant. 
  — 
  Loyal 
  B. 
  Aldrich. 
  

  

  DIVISION 
  OF 
  RADIATION 
  AND 
  ORGANISMS 
  

  

  Research 
  associate 
  in 
  charge. 
  — 
  Fredescick 
  S. 
  Brackett. 
  

   f^onsulting 
  plant 
  physiologist. 
  — 
  Earl 
  S. 
  Johnston. 
  

   Research 
  assistant. 
  — 
  Lexand 
  B. 
  Clark. 
  

  

  REGIONAL 
  BUREAU 
  FOR 
  THE 
  UNITED 
  STATES, 
  INTERNATIONAL 
  

   CATALOGUE 
  OF 
  SCIENTIFIC 
  LITERATURE 
  

  

  Assistant 
  in 
  charge. 
  — 
  Leonard 
  C. 
  Guknell 
  

  

  