LISTE DES SOCIÉTÉS CORRESPONDANTES 



Philadelphie. American Philosophical Society. 



» Wagner free Institute of Science. 



» Académie of Natural Sciences. 



Chapel-Hill. Elisha Mitchell Scientific Society. 



(Nortb-Carolina ) 



Minneapolis . Minesota Academy of Natural Sciences. 



New-Haven . Connecticut Academy of Art and Sciences. 



Sacramento . California State Minning Bureau. 



Des Moines. . Iowa Geological Survey. 



(Iowa) 



Rolla Missouri Bureau of Geology and Mines. 



(Missouri) 



Chicago .... Academy of Science. 



BRÉSIL 



Rio'de-Janeiro Museo Nacional. 



COSTA-RICA 



San-José. . . . Museo Nacional. 



» .... Institut Physico Geographico Nacional. 



URUGUAY 



Montevideo. . Museo Nacional. 



PÉROU 



Lima Cuerpo de Inginieros de Minas del Peru. 



