552 Appendix. 



Society of Natural Sciences, Batavia. 



Boston Society of Natural History, U.S.A. 



Connecticut Academy, U.S.A. 



Johns Hopkins University, Baltimore, U.S.A. 



Second Geological Survey of Pennsylvania. 



Smithsonian Institute, Washington, D.C. 



Geological Survey of U.S. Territory, Washington, D.C. 



American Geographical Society, New York. 



New York Academy of Sciences. 



American Philosophical Society, Philadelphia. 



American Institute of Mining Engineers, Philadelphia. 



Franklin Institute, Philadelphia. 



Academy of Natural Sciences Library, Philadelphia. 



Wagner Free Institute of Science of Philadelphia. 



Academy of Natural Sciences, Buffalo. 



Academy of Natural Sciences, San Francisco. 



Academy of Natural Sciences, Davenport, Iowa. 



Harvard College, Cambridge, Massachusetts. 



Natural History Society of Frankfurt a 0. 



Eoyal Society of Literature and Arts of Belgium, Brussels. 



Eoyal Imperial Institute for Meteorology and Earth Mag- 

 netism, Hohe-Warte, Vienna. 



Jahrbuch der Kaiserlich-koniglichen Geologischen Eeichs- 

 anstalt, Vienna. 



Ornithological Society, Vienna. 



Botanical Society of the Province of Brandenburg, Berlin. 



Dr. Bastiau, Berlin. 



Eoyal Library, Berlin. 



Imperial German Academy of Naturalists, Dresden. 



Physico-economic Society of Konigsberg, E. Prussia. 



Verein fiir vaterliindische Naturkunde in Wiirtemberg, 

 Stuttgart. 



Society of Geography, Leipzig. 



Eedaktion des Biologischen Centralblatts, Erlangen. 



Biblioteca e dell Archivio Tecnico del Miuistero Cordoba 

 dei Lavori Pubblici, Eoma. 



E. Accademia dei Lincei, Eome. 



Imperial Museum of Florence. 



Eoyal Geographical Society of Italy, Florence. 



Orto e Museo Botanico (E. Instituto di Studi Superiori) in 

 Firenze. 



Tuscan Natural Science Society, Pisa. 



Museum of Zoology and Comparative Anatomy of the Eoyal 



University of Turin. 

 Editor of Cosmos, Turin. 



Academy of Science, Modena. 

 National Library, Paris. 

 Societe de Geograj)hie, Paris. 



