﻿Smithsonian 
  Report, 
  1927. 
  — 
  Slosson 
  

  

  Plate 
  1 
  

  

  Dr. 
  Friedrich 
  Bergius, 
  of 
  Heidelberg, 
  Inventor 
  of 
  a 
  Process 
  for 
  

   THE 
  Liquefaction 
  of 
  Coal 
  by 
  Treatment 
  with 
  Hydrogen 
  Under 
  

   High 
  Pressure 
  

  

  (Photograph 
  by 
  Science 
  Service, 
  Washington) 
  

  

  