﻿Smithsonian 
  Report, 
  1927. 
  — 
  Klemperer 
  

  

  Plate 
  2 
  

  

  1.— 
  Waiting 
  for 
  Wind 
  

  

  2.— 
  A 
  Take-Off. 
  Notice 
  the 
  Enormous 
  Wing 
  Span. 
  (Espenlaub) 
  

  

  