42 AARSBERETNING FOR 1921 



Minneapolis. 



The Univcrsity of Minnesota. 

 M ii n c h e n. 



Bayerische Akademie der Wissenschaften. 



Die Ornilhologische Gesellschaft in Bayern. 

 Nancy. 



Académie de Stanislas. 

 Napoli. 



R. Instituto ed orto botanico della R. Universitå di Napoli. 

 New Haven. 



Connecticut Academy of Arts and Sciences. 

 New Y o r k. 



Academy of Sciences. 



American Museum of Natural History. 



New York Zoological Society. 



The Torrey Botanical Club, Columbia University. 

 Niirnberg. 



Naturhistorische Gesellschaft. 



Germanisches Nationalmuseum. 

 O s n a b r ii c k. 



Naturwissenschaftlicher Verein. 

 Ottawa. 



Canada Department of Mines. 



Royal Society of Canada. 



The biological Stations of Canada. 

 Paris. 



Musée National d'Histoire naturelle. 



Société d'Anthropologie de Paris. 

 Philadelphia. 



Academy of Natural Sciences. 



American Philosophical Society. 



The Museum, University of Pennsylvania. 

 Pisa. 



Sociéta Toscana di scienze naturali. 

 Pittsburgh. 



The Carnegie Museum. 

 Plymouth. 



Marine Biological Association. 

 Prag. 



Société Royale des Sciences de Boheme. 

 Riga. 



Gesellschaft fiir Geschichte und Altertumskunde zu Riga. 

 Rochester. 



Academv of Science. 



