-l-^'* [Sept. 4, 



Letters of envoy from the Geological Survey of Ijiclia, 

 Calcutta ; Naturfbrsclier-Gesellschaft, Dorpat, Kussia ; Mus^e 

 Teyler, Harlem, Holland ; Maatschappij der Nederland- 

 sclie Letterkunde, Leiden, N. Holland ; Academic E,. des 

 Sciences, Stockholm, Sweden ; JSTaturforschende Yerein, 

 Briinn, Austria ; K. Geologische Landesanstalt und Berga- 

 kademie, Berlin, Prussia ; ISTaturwissenschaftliche Verein fiir 

 Schleswig-Holstein, Kiel, Prussia ; Wiirttembergische Ver- 

 ein fiir Handelsgeographie, Stuttgart ; P. Accademia di 

 Scienze, Lettere ed Arti, Modena, Italy ; Faculte des Sci- 

 ences, Marseilles, France ; Societe Philologique, Bureau des 

 Longitudes, Paris, France ; Zoological Society of London, 

 Meteorological Ofl&ce, London, Eng.; Radcliffe Observatorj^, 

 Oxford, Eng.; Poyal Dublin Society, Royal Irish Academy, 

 Lublin, Ireland; Mr.- T. W . Higginsou, Dublin, IST. H.; 

 Meteorological Observatory, ISTew York, N. Y.; U. S. De- 

 partment of Agriculture, Bureau of American Ethnology, 

 U. S. Coast and Geodetic Survey, Washington, D. C; Agri- 

 cultural Experiment Stations, Madison, Wis., St. Anthony 

 Park, Minn., Brookings, S. Dak.; Museo Nacional, Buenos 

 Aires, S. A.; Instituto Fisico-Geografico Nacional, San Jos6 

 de Costa Rica, C. A. 



Acknowledgments for Transactions (N. S.) xviii, 3, from 

 the Mus(^e Teyler, Harlem, Holland ; K. K. Stern warte, 

 Prag, Bohemia ; K. Bibliothek, Berlin, Prussia ; Literarj^ 

 and Philosophical Society, Manchester, Eng.; Royal Society, 

 Edinburgh, Scotland ; Geological Survey of Canada, Ottawa : 

 State Library of Pennsylvania, Harrisburg ; Franklin Insti- 

 tute. Philadelphia ; Smithsonian Institution, Washington, 

 D. C; University of Michigan, Ann Arbor ; Kansas Acad- 

 emy of Science, Topeka. 



Letters of acknowledgment from the Ro^^al Geographical 

 Society of Australasia, Brisbane, Queensland (1-13, 1-16) ; Mr. 

 Samuel Davenport, Adelaide, S. Australia (1-13, 146); Royal 

 Society of Victoria, Melbourne (147) ; Geological Survey of 

 India, Calcutta (148) ; Tokyo Library, Tokyo, Japan (148, 

 149) ; Societas pro Fauna et Flora Fennica, Ilelsingtors, Fin- 



