163 — 
Colombia 
Bogota — Socieclad dentai de Bogota (Anales). 
Costa-Rica 
San José — Museo Nacional (Anales). 
Messico 
Messico — Sociedad cientifìca Antonio Alzate ( Memorias y Re- 
vista). 
Stati Uniti 
Madison Wisconsin— Academy of Sciences arts and lettres ( Tran- 
sactions). 
Philadelphia — Academy of Naturai Sciences ( Proceedings). 
Rateigli — Elisila Mitckell scientific Society (Journal). 
Saint-Louis — Academy of Naturai Science ( Proceedings). 
"Washington — United States Geological Survey (Annua! Report). 
U. S. Departement of Agricuiture - Division of Ornitko- 
logy and Mammalogy (Bulletin ■— North American 
Fauna). 
Smithsonian Institution (Pubblicazioni). 
