AARSBERETNING FOR 1920 45 



U rb a n a, 1 1 1 i n O i S. 



University of Illinois. 

 Washington. 



National Academy of Sciences. 



Department of Agricullure. 



Department of Commerce. 



Library of Congress. 



Smithsonian Institution, Bureau of Ethnology. 



U. S. National Museum. 



U. S. Naval Observatory. 



U, S. Coast and Geodetic Survey. 



U. S. Geological Survey. 

 \\' i e n. 



Zoologisch-botanische Gesellschaft. 



Naturhistorisches Museum. 



Zentralanstalt fiir Meteorologie & Erdmagnetismus. 

 Y o r k. 



, , Yorkshire Philosophical Society. 

 Z ii r i c h. 



Die antiquarische Gesellschaft. 



Nalurforschende Gesellschaft. 



Gesellschaft fiir Urgeschichte. 



Zentralbibliothek. 



