84 Vereine und Anstalten, mit welchen Schrii'tentausch stattfindet, 



St. Louis: Missouri Botanical garden. 



Madison : Academy of Sciences, Arts and Letters. 



Mexico: Instituto geolögico. 



Montana: Biological Station of the University. 



Montevideo: Museo nacional. 



New- York: Botanical Garden. 



Sao Paulo: Comraissao geographica e geologica. 



Sao Paulo: Museu Paulista. 



Philadelphia: Academy of Natural Sciences. 



Rio de Janeiro: Museu nacional. 



Rock Island 111.: Augustana Library. 



Salem : American Association for the Advancement of Science. 



Santiago de Chile: Deutscher naturwissenschaftlicher Verein. 



Toronto: Canadian Institute. 



Washington: Department of Agriculture of the United States 



of North America. 

 Washington: United States Geological Survey. 

 Washington : Smithsonian Institution. 

 Washington: The Microscopie. 



Asien. 



Manila: Exposition Board of the Government of the Philippine 

 Archipelago. 



